Can i learn a back handspring at home?

there are no specific steps i can tell you that could help. the only advice i CAN give you, is too just trust yourself. thats how i learned. i learned to do layouts/tucks because i bounced too high on the tramp. so try this: try going for a layout, but with not as much power. make sure you put your hands down to catch yourself, and look for the trampoline. this might help. whatever you try, dont bail out in the middle of the trick. you could severly hurt yourself. just have confidence, and you would be surprised with what you can do.