Are ugly teeth a big turn off? :(?

Im only 14 and I think I have dental flourosis,wich is white stains(on my top front 4 teeth) and it's uncurable,you can whiten them,but my mom wont buy me crest strips or anything like that,she always yells at me and says I have good teeth,and If i want them whiter I should just brush more.I brush twice a day and my teeth arent a bad color,but the stains make my teeth look darker,like an illusion.Also,My top front tooth is overlapping the other. I cant afford braces.I have a good personality,just low self of steem,and Im not ugly or anything,but when I smile,i feel like the ugliest person ever,and I smile all the time and laugh,I just cant control it! I almost never have guys that I like,like me back,and I feel like its my teeth.Will a boy ever love me?