just venting

im young and i got a boyfriend like three months ago. hes the best thing that has ever happeneed to me but i feel like i dont deserve him. i keep on telling myself that yk we are meant for each other but i cant help but feel like hes so much more better than me i really hate it i relaly really htae myself .. hes so patient and kind and honestly he handles me way better than i do. i feel like if he continues lving me hes only going to get hurt because im hoenstly so so selfish ad he deserves better.. how do i stop yself from self destructing this rs ? im so confused