I don't know how to handle my hair

I had that God awful "scene phase" and I razored the shit out of it and dyed it wayyyyy to much. Now I'm 20 and for the last 5 years of my life I have been doing everything I can to get my hair back to healthy. Prenatals, biotin, trims every now and then, I don't dye it. I don't use heat on it at all. It worked. And it has grown so much I don't know what TF to do with it. I have baby hairs (new growth) in the weird places that stick up off my head. My roots are incredibly thick and hard to manage. I spent 5 years on my hair and I want to chop all of it off because it drives me insane. It doesn't look good either, like some parts of my hair has grown thicker than the rest and it doesn't look even at all. One side of my head has more hair on it, I have a cowlick that's wild so I can't part it differently or it looks stupid. I'm sorry I'm like overwhelmed by my hair atm and I just want it to do what I want.