Dont do it in a place where you might get caught, If yer dad says he'll be home in 1 hour dont do it cause he might come home early.

Also be sumwhere where you can relax, where yer not freakin' out about being caught

Might also wanna bring sumthing to drink as that usually helps the first times when it hurts yer throat.

And food... even if yer not hungry you soon will be