Patience, short sessions, lots of treats, and a lot of sweet talking
Quincy is seven months old and still doesn't really LIKE to be brushed, but he tolerates it. I've learned to find a time when he's relaxed and it seems easier for both of us. Oh, and I sing nursery rhymes when he gets me frustrated
Who can get mad when they're singing Mary had a little lamb?
Re: the eye boogers. Try wetting them with a warm cloth and then using the comb. It might not pull as much.
Welcome! We need pictures of Olive.