I feel so bad

I posted a while ago that my dog had matted fur after I bathed him with this stuff made to get skunk smell out of him. I stupidly bathed him again so that probably didn’t help the mats.

Yesterday I bought detangler spray (for dogs) and a better brush than the one I have. It works really well, I got 2 giant piles of fur off him from all the matted fur. But he barks when I do it because it hurts, which I feel bad cuz he doesn’t understand that if he stays still it’ll go faster. So I have a kong for him and I filled it with peanut butter and it worked to get the piles off him. I’m gonna try again later cuz he still has a bit left but I also had to cut some of it out due to it being too much for me to get out without hurting him. But I feel very accomplished getting so much out. His fur looked so bad and now hopefully it’ll look much better. The spray is also supposed to make his coat healthy and shiny.

If anyone has any other advice lemme know