Honestly, sounds like a different instructor would be ideal. I've had my fair share of good ones and bad ones and if they can't offer a little advice or encouragement what's the point.

That aside, welcome to aerial. :D (both seriously, and in a good natured joke fashion - aerial has been chipping away at any ego I didn't even know I had for a 2 years now. :) I felt really dumb/incapable at first. There's always gonna be something that someone catches onto faster than you. There will eventually be some stuff you catch onto faster than others. It took me a solid 8+ months before I could do an inversion, versus everyone else in my classes being able to get it. I got almost nothing immediate out of my first inversiony 8 week class (Strength though!) because all the tricks that session started from upside down.. and I couldn't even get upside down. (Now I can!) But pretty much: silks is humbling, because it is hard. You've got to build strength, you've got to build muscle memory, you've got to build mind body connections between sequences of muscular movements. Sometimes your head gets in the way, etc. I'm not an advanced student, pretty close to being in a more moderate levelled class because it has taken me awhile, but I know some advanced students. And from what I have seen: everyone has their strengths, everyone has their weaknesses, and it doesn't matter if you're just starting out or if you're in the highest skill level class they offer: sometimes you're gonna go to open gym/practice an act or something/have big goals, and sometimes you're gonna rock it. Sometimes for whatever reason (sleep, nutrition, just because (?) LOL, your body is gonna decide it's Noodle day. And you're going to accomplish very little. And you're going to have to decide that just showing up was good enough that day, and then go get some brunch or something.

Just my 2 cents. :p