uneven boobs

im 18 and my left has ALWAYS been bigger than my right, and its very noticeable in shirts and swim suits but im perfectly healthy. (i also have very small boobs, the left is a perfect lil B cup boob and then my right is just a flat A) this insecurity has just been snowballing and i cant even engage fully in sexual activities unless i have at least a shirt on, what should i do 🥺 do you think guys would care about such asymmetrical boobs? i feel like im not desirable:/ all the other girls have such pretty bosoms and i just feel odd