Erniestavros, please start slow. (As I say to people I'm teaching to cook, you can always add more but you can't then add less.)
If you're new to Xanax, .5 mg to 1 mg will make you QUITE relaxed, and you might fall asleep if tired, horizontal, etc. Don't drive, don't drink; even now--benzo-tolerant--I try not to drive while under the influence.
Don't mean to go all-out-mommy on you... Xanax is one of God's gifts to humanity, IMHO. Yet it is possible to enjoy the many splendors of alprazolam without getting totally f'ed up. Aim for that!