How to practice witchcraft?

well i am of the pagan/ Wicca faith and i would like to know how to practice witchcraft. the problem is my mother doesn't want me casting spells because my first spell didn't turn out so well. she blames my spell for casting bad luck on our house. so i can't do that, my dad forbids any religion except Christianity in his home. so how can i practice witchcraft? is there a way to study up on spells and witchcraft during school hours? and is there a site where i can practice telekinesis?

wake up and smell the habituals.

Only God is real. you hang in the balance of your faith.

faith in Wicca can only condemn you

Well, it's kind of devious to go behind your parents' backs and do something they have expressly asked you not to do in their house (I can't say I didn't do it myself, but I can't in good conscience recommend that you do so, either).
Also, you shouldn't be doing spell work at school; I've done that, too, and not only is it distracting to other students and the class, but that is a time when you should be learning and getting an education, something most Pagans prize.
I suppose you could go out to a friend's house, or out in the open somewhere, to study and practice. But I suggest you do plenty of research first.
This may also be of some help: http://paganwiccan.about.com/od/familyandparenting/tp/TenThingsToLearn.htm

Astral projection. Simply meditate and take your conscienceless to a place where you can study magi ck.

Most metaphysical bookstores give 101 classes. Most on the weekends (a metaphysical bookstore is a place where they sell pagan supplies and books).

A: get a cauldron
B: throw stuff in the cauldron
C: PROFIT???

can't you do it there without their finding out? maybe you can start with a blind and deaf spell on your parents.

As a pagan, I must advise you to not do stuff behind your parents' backs if you are underage.

listen to your parents.

As a Wiccan, I have to say that you need to learn to respect your parents wishes. Patience is a beautiful thing, cultivate it. THEIR HOUSE, THEIR RULES.