one is higher and thicker, I think it makes one of my eyes look a lot bigger. I want them to be twins..

How uneven? Remember, eyebrows are sisters, not twins. If it is major, then yes - your threader should be able to help, but a little bit is normal.

Any really good wax/threading places anyone can suggest? The nail salon waxers I've been going to just wax the existing shape and aren't helping to fix the problem. I'm hoping to find a real expert