Tips for fixing teeth without dentures?

does anyone have any tips to getting their teeth like fixed without dentures? I've never had good teeth and they are my biggest insecurity as it makes me more guarded off to people idk how to word this. I'm 16 and feel like my teeth are holding me back from being a normal teenager and having typical experiences. I can hide my bipolar disorder and manage my social anxiety decently as it's been awhile for that but i cant just hide my teeth. Dentures scare me but i have little enamel so i don't want to destroy them. i don't know what to do. are there any procedures that are decently cheap or covered with some sort of insurance? is there any home remedies or something?? any products? i feel like most products are scams. I don't know.