"Take responsibility for yourself."

"Be accountable."

"Learn to accept things you can't control."

"Self pity gets you nowhere."

These are all nongendered ways of saying your mental health is your own responsibility. Or, simply repeat to yourself your own observation, "If I'm feeling bad but force myself to do something, I usually feel better." You were already on the right track friend. Just realize gender has absolutely nothing to do with the concept and counter thoughts that tell you otherwise.

Suck it up.

Embrace the suck.

Stop being a pussy (I use this sparingly and only around people who I know can handle it. If they take offense, I tell them since I, being a woman, have a pussy, I get to say that. I am reclaiming the word.)

Activating survival mode

While I don't have an exact answer for you I do have two rules that I try to live by that had helped me deal with being an adult:

1. To be an adult, you only need to know when it is apropriate to be childish. - This implies a shitload of stuff, it implies that you know what being childish means, as well as being able to read a situation. I treat it as a reminder that it is ok to keep playing and as long as you do it apropriately you can ignore critics.

2. Don't paint the devil on the wall unless he stands in the hallway, but it won't harm you to have some paint available. - Basically don't constantly prepare for the worst, but should the worst happen, take notes and analyze the situation, and be somewhat prepared to do so.

Monkey Up

Some variation of, "Well... Looks like today is my turn to be the adult," is usually what I say to myself when there's some necessary but unpleasant task that I have to take care of.

Don't let your emotions rule you.

I'm also fond of a line from The Matrix: There is no spoon.

Face your fear. Do you feel scared to do something? That's totally valid and understandable. Do it scared. My point is, don't ignore the feelings. Acknowledge the feelings, then do it anyway.

Man up is a masculinization of a notion that equates to common adulting. It's about taking responsibility, which women are obligated to do as much as men in 21st century society.

A related term is to pony up meaning to pay a bill which has a lot of intersection (as many responsibilities are financial, especially those associated with manning up) so pony up could be repurposed.

"Sometimes you've just got to grab your balls and jump"

Toughen up

I worked with a stunt coordinator once who told one of his guys that he was going to drop him, lying parallel to the ground, from the ceiling. He wouldn’t be able to brace his fall (as he was supposed to be dead), so he told his guy he’d just have to “cowboy up.” Not sure that’s a better phrase, but it’s got more color.

It's not useful as a punchy slogan, but in periods of duress I try to step outside my feelings to evaluate my goals and reactions, and then when I have done that analysis I visualize myself doing a kind of DBZ power up sequence, but kind of defensively oriented. It sounds ridiculous and I am explaining it really poorly but it seems to help

Take the hit

Feelings are just chemicals in your brain. Don't let those tiny bastards win.

Do your duty. Take responsibility. Do what needs to be done.

Man up doesn't mean do something stupid, it means do it has to be done, good or bad. Get it done.

"Once you've got a task to do, it's better to do it than live with the fear of it."
-Logan nine fingers (Joe Abercrombie)

Helped me a lot in dark times...

Adversity is inevitable, mistakes are your greatest teacher. Learn and grow, or become your own prisoner.

I reframe it as a reminder that something is temporary. "I only have to deal with this for x more hours/days/whatever" helps me remember that while I gotta be tough now, I don't necessarily have to be later.

If you're going through Hell, keep going.

My mantras are:
Just do it. 🗸 = stop overanalyzing, start with whatever action you can do right now
Always eat your dessert first. = start with the most enjoyable or easiest part of the task
Be someone else. = pretend it's not you facing the tough situation but someone else who asked you to get them out of it

"If it wasn't hard, it wouldn't be worth doing"

It's kinda sorta stoicism, just phrased in a judgmental, dismissive way, that is also pointlessly and rather toxically gendered. It's close to the minimum amount of helpfulness "advice" can possibly have.

Being done with stuff feels good if your reward system is working properly. Other than that, while you can have "inertia" issues getting started and that feels kinda stressful, procrastination tends to get stressful too, after a while. At a certain point you'll just have delayed the gratification to fit in some more worried and often unsatisfying faffing around.

Since pushing through whatever seems to work for you and make you feel better, I would focus on that instead of nonsense about not being macho enough.

Old guy at work asks me if I like my job and I say no. He says "Work is for family not for you."

When I was strugging with motivation in getting out to go for a run or whatever I found "Just do it" to be fairly effective. Only later realizing I was lifting the Nike slogan. Still, it works for me.

So far my favorite is "Rise up".

As a self-encouragement strategy, I agree, and often use the same trick.

maximum effort

time to nut up or shut up

never half-ass two things. whole-ass one thing.

There’s a bunch of colloquialisms that express roughly the same thing, as others have mentioned - take your pick.

Nowadays I say "this shit ain't nothing to me" or "it is what it is" a lot. I never thought about it being more gender neutral until this post though.

'show your courage'

'what cannot be controlled must be endured'

Get prehistoric, go full barbarian, hulk it out, become psychosocial.

*cue Mulan Make a Man Out of You song

Lets do some wild improvisation!

It promts me to a) just fukkin do it and b) not expect perfection

I don't remember the details but there was an Internet story about a dude who'd say "man up" and people explained why that was a problem and he updated to "fortify". And I really like that, because it kinda suggests also getting help where you need it to build up your defenses in order to face the thing you need to face.