I need someway to perfect my front handspring & get an ok back handspring in 1 1/2 days?

Question

i haven't even started trying to do a back handspring

Answer 1

...You're going to hurt yourself very, very badly. Don't even try, it isn't possible without a decently flexible back and a lot of practice. h**l, do you think that stuff comes free, or what? You actually have to WANT it more than I can see you do.

Answer 2

I'm sorry but you can't learn a back handspring in one day, and especially not if you are trying to teach it to yourself. You can seriously damage your spinal cord if you fall on your neck, which can cause paralysis or even death.  Please go to a gymnastics center and take tumbling lessons to learn these skills!