Feeding time help!

GF

Guys! I am about to lose it! I am at a lost on what to do. My son has become so difficult to feed. He does not want me to feed him anymore. When I let him him try to feed himself it is the biggest mess ever and then I have no clue how much he actually ate. I have tried not looking at him while he feeds himself. He most of the time will not even try what I make for dinner. Then we cave in and make him a peanut butter sandwich to eat and he loves it! He is obsessed with peanut butter! We don’t want him to go to bed hungry so that is why we cave in. He never used to be picky, but the past week and half he has been difficult. He “eats” all these different types of food at daycare, but when we try he does not eat it. Makes me wonder how and how much he is actually eating at daycare. Do you guys have any tricks or tips?