My ds took a long time to fully switch to regular food. And he took a LONG time to go from eating purees to puffs to cheerios to other finger food. Even now, he doesn't like to eat fruit in pieces, but he LOVES puree fruit. I can get him to take some banana, but finger food peaches, pears, etc., are smushed and then thrown overboard.
What foods have you tried? Have you tried the Gerber puffs? That's what we started out with , and I would break them in half. They dissolve in their mouths. Then we moved onto cheerios (after a long while), and on from there.
Good luck!