The meditation that I liked were the ones that practiced mindfully shifting your attention.

The first one was using a specific type of mandala made of harsh contrasting colours and projecting the image on your mental vision. Interestingly, its clarity would fade if you focussed too hard, or too little. Practicing the 'sweet spot.'

Another was generating thoughts. Letting your mind make stuff. The point was to become aware of the thoughts appearing up. I noticed in this one that the first minutes worth of thoughts were usually garbage. After that, my mind generated stuff that I thought was useful. Like remembering to plan that dental appointment...

This practice was followed by practicing to redirect your attention every few seconds on purpose. Which teaches you how to redirect your attention from your thoughts, into where you want to go.

Ofc, meditation is nice, but the goal is to put that stuff into practice. I found it helped getting myself to do what I want to do, but couldn't get myself to. Like studying or cleaning.

My tip is, choose 1 low-level and practice that. I started in the morning for 5 to 10min, and tried to apply the lesson throughout the day to make it useful. I did that for 1 to 2 weeks before going to the next step of the meditation. That was hard enough! xD