Bgirls and bboys, can you help me with...?

I need help with my headspins, turtles, windmills, and airchairs. I'll do headspins first. Right now i can only practice on carpet... is it possible to learn them that way? my record is 1/3 of a spin and then i fell down. thats the other problem i have, i always fall after i tap, even if i just go1/8 of a spin. Ok now turtles. I got the freeze down, but when i try to spin (i go CW) my left arm always slips out from under me and i can't get it back. same thing when i try to walk my turtles. i think i do my spining turtles wrong though. Windmills next. once again i have to practice on carpet so maybe thats the problem but i have trouble with collapsing (and pretty much everything after that lol). i just can't get very far when it comes to mils. Now airchairs. i need serious help with these. i think its mostly a strength problem but i just can't keep my head off the ground or get my feet in the air (i think these are the hardest for me of the 4). so thanks for any help with any of the 4!