Advice on breasts!!!

I’ve recently had my mom measure my busts and calculated them in a couple different websites and I usually get 36DDD, I like bigger breasts on myself otherwise I have nothing else going for me. But I’ve always been self conscious about them because they face downwards I guess you could say?

It looks like the breast in the “full on top” picture. Is this normal among women? I’m only seventeen and I thought teens were meant to have perky boobs 🥺. I don’t know if I should embrace them or try to exercise and get them perky- but I’m afraid of my breasts going from a DDD to like a B or something. Do men even like non-perfect boobs? I have so many questions I need answered, just a little assistance would be appreciated thankssss