Mind now - speed isn't everything . .
eg don't do 30/10 if you can do 20/20 or some such . . .
You probably should aim to QSO ASAP and 30/10 won't win you any friends, either with the high speed clubs
or with the slower students who might cope with the /10 but won't cope with the 30/
As usual, cb said everything there is really to say.
IMHO, you're probably better off sticking to 20/10 to learn the lessons for several reasons:
1. It is probably the lowest speed at which one can no longer really count.
2. It is a realistic speed for communicating in morse with a sizeable number of amateurs. As cb pointed out, QSO early on is a top priority. There's not a lot of people out there at 30/30wpm and 30/10, I doubt you will find any takers on the air . . .
3. You won't get discouraged and drop out which is the biggest problem by far.