I`m getting my wisdom teeth out tomorrow I play lead in symphonic band and jazz band, what should I do so I don`t hurt my mouth or chops? Also how long should I go without playing and how can I practice in the meantime.

no way of telling for sure, really...
if it`s a smooth extraction, you`ll be back on the horn in a week or so. if it was a rough extraction (mine was), it may be longer. i was out for a month, but i had dry sockets, and other stuff.
that first week after.. don`t play at all... if you insist, go ahead and try, but i would spare you that pain. just listen to a lot of music and let your chops recharge their batteries.