should I get braces?

I want/need braces but I don’t know if I should get them or not. the main thing I want it for is my front teeth, one is overlapping the other quite a lot and it makes me very insecure and ashamed to smile so I feel like getting that fixed would help my confidence a little. I also have a problem on the right side of my mouth where my bottom teeth overlap my top teeth of that makes sense? and I don’t have much room in my mouth so when my wisdom teeth grow I’ll have no room.

I’ve gotten opinions from 3 different dentists, one said I will definitely need braces, one said I don’t need them at all and one said it would be beneficial to get them but I don’t have to and that it would mostly be for aesthetic reasons, so I’m not sure what to do. I would really love to get my front teeth fixed but I also know that braces cost a lot and my mum can’t really afford that right now. does anyone know about how long it would take to fix them?

any advice or information would be helpful, thank you :)