Hey give it a couple more days of practice. League starts at the end of this month and it is much more than enough time to get yourself good enough to atleast stay on track.
I've been practicing for 2 weeks now and I'm comfortably knocking out low 21s and high 20s. If i can get that much progress within that short of time. You can definitely get in good shape within a month. The server has also become a friendly place. Just ask one of the top runners to help or give some tips and I'm sure they'd lend any support they can give.