Help 😫 terrible mom

I'm looking for suggestions on educational toys for a 1.5-2yr old boy. I was cleaning up his toys today and realized he doesnt play with more than half of them. Probably because they bore him.

Quite honestly he watches a lot of tv and I'm feeling super guilty about it 😭 I'm 8 months pregnant and have next to no energy to play with him. Hes starting to act out, likely because he isn't stimulated enough.

I feel like a terrible mom and I need some suggestions on stuff I can get him that keeps him engaged & fuels his mind.