Need advice on solids

R
FTM and my son will be 7 months next week. We've been trying solids for over a month now. Oatmeal and baby food. Green beans, sweet potato, peas and squash so far with veggies and banana, peaches and applesauce for fruit. He doesn't seem to be getting the hang of anything at all. Dislikes everything I've given him or shows barely any interest so I was thinking after reading some posts on here that maybe he just doesn't like jarred baby food. So today I made him an actual sweet potato and mashed it up nice and soft. Gave him a little bit at a time and he was way more into it but he doesn't seem to know how to "chew" (with his few teeth & gums before swallowing and just gags it all up😕 To moms who make their babies food please tell me what you make and how you make it!! Was it too thick for him? Should I of added water to it? I was going to try giving him some avocado because I hear that's a great starter food but not with how he's eating right now. He'd just swallow it and gag on that too. How can I help him get the hang of crushing food with his gums first before swallowing?