It's hard not to worry, but it's quite normal! At this stage, the main source of food can still be milk. You can get your baby acquainted with solids by 1) eating together (baby joins you during meals, can just watch and see that oh you're eating 'food') 2) letting him explore his food and various textures with his hands at the dining table but not forcing him to eat it. If he decides to put it in his mouth, great. Otherwise, touching it and exploring it with his hands could be good enough at this age when he is just starting out (I mention at the dining table because some parents may not be comfortable having their children playing with food off the table!)
Lastly, be patient with bb and yourself. It can take a long time and lots of trial and error. You're doing great! ❤