Bra help need thank you

Uhhhhhhhhh

I've recently noticed that my bras hurt. I don't feel like the boobs are any bigger, and also their shape seems to me as strange (why is the aoela thing bulging out????). And the boobs are too pointy, and the nipple is asymmetric (more to the up than down). Like the whole boob is like an overhang cliff.

My point is that I'm clearly not doing something right, and probably need tk support the breasts from underneath. What do I do basically? I'm thinking of buying clothing measuring tape and getting a better size bra, but I'm not sure what the correct construction of the bra itself should be.