If you can grow indoor and force into flower (8 to 12 hours per day light and lower the temp a bit) that will give you the most consistent crops. Bugs are likely the number one problem particularly with normal soil grown plants. I recommend doing smaller shorter grows but more per year. The shorter grows time means less likely you will have an infestation problem. Well mean smaller harvests but you can do more per year. This kind of control requires a location you can entirely remove any light sources but your grow lights.

Overall it is really hard to kill a weed plant. They grow like a weed. Thus the name. In my case, I able leave them in the grow stage for a month then flip the lights to 10 hours days to force flowering. At that point they might be a foot high but even in flower they will grow another 3 feet over the next two months. Clean out any dead or crappy branches. Also at some point about half way thru I start to remove bottom leaves and thin out a bit. 90 percent of your harvest will be from the top. They will get super sticky if you do it right. Leaves on the bottom typically get little light and use up energy. Stressing your plant is part of the cycle. Basically the low light and leaves being cut off tells the plant fall is coming and I am struggling a bit so start to flower heavily to carry on my species.

And for God's sake, don't over fertilizer. Most soils are good by themself or only require a small amount of nutrients. I don't know how many people grew but get these crappy returns as they over fertilizer and as it hurts their growth, they keep think even more will make it better.

Anyhow this is just part of a good crop advice. Lots of videos. Mostly keep a clean room and other than water and a bit of love, you will get good crops.

Forgot one thing. Get feminized seeds. You can't have males. You don't even want your neighbors to have males. Burn their house.