Loses power full throttle

Testimonial: "Sorry for the lack of info. Im a 23 yr old female and this is my first time ever trying to figure out whats wrong with my atv myself. But yes it has gas. The fuel is turned on. The battery is good. Ive been having problems with my starter and im waiting to replace the brushings I think it is in my starter, but it still crank started until two nights ago. I had it wide open and it started losing power. It never bogged down or anything though. I pulled over to the side of the road and it completely died. I tried starting it back but it was really hard to pull and never started. I got it home now it has compression when you pull the crank rope but wont start."