Full time job, college and small business start up. any advice?

I'm currently working full time 9-6pm. I plan to start college this August for fall term. My two other partners and I are also waiting on our tax ID that should be here around August as well, in which we plan to use to start our well planned out business which is expected to be very successful. My dilemma is scheduling. Any one have advice on how to manage or rethink my full time or how many classes i should take per semester? Any advice would be appreciated. Thanks