feeling down

My son just turned 8 months old. I try to feed him little finger foods but he doesn't show much interest in feeding himself AT ALL, or even eating finger food at all. I'm lucky if he will take 3/4 bites of cut up food I'm eating. Although the can eat 2/3 containers a day of baby food and of course his formula. I feel like I'm doing something wrong because I see sooooo many moms feeding their baby like full on meals! (Btw, my son also chokes when I give him pieces and sometimes even on the little puffies, he tries to swallow them too fast) he has 0 teeth. Any advice? New mom here