Please don't take this the wrong way but: You're being a *****.
Invisalign costs considerably more then braces. Sure, braces aren't the 'hip' thing to have, but people honestly don't care. They really don't. The last time kids actually cared about braces and glasses was the 1950s. It's not like "Oh, you're a cool person" without braces then "Oh, ****, you're useless nerd!" with them. People don't think like that. They aren't that stupid.
I'm gonna guess that you're a teenager. Because you're acting like one.
You know, when I was a child I truly needed braces. Nothing would have made me happier then if someone gave me braces. To this day - my teeth are crocked. Just because you notice them doesn't mean anyone else will.
Your dentist probably /did/ beat around the bush. Invisalign costs twice as much as braces. Furthermore - Not every mouth type can handle invisalign. It could very well have been a physical thing. As a matter a fact, the majority of people don't qualify for invisalign, you have to have the right problems/type of mouth.
Furthermore, a little gap in your teeth quickly turns into a train wreck as your teeth grow. You'll soon learn what truly ugly is if you take them off. Sure, you wont have braces in highschool (which, again, no one cares about) but you'll be ugly as **** when you enter into the workforce. People don't care if you have braces, most don't notice. But people /DO/ care if you have ugly crocked teeth.
Finally (and obviously) it would be INCREDIBLY painful if you took of your braces. I say, if you want to keep acting like this, go for it.Take em off. But you'll end up in the E.R. Take off your braces and you'll have a reason to cry!
My advice: Get over it. You're truly being pathetic. You are a fortunate person, realize it. Your parents and your dentist were doing whats best for you. By the time the 8 months is up - you wont even notice you have them.