Figure out my schedule

So I have to figure out how I'm going to work while going to the tattoo shop. I know I want to devote most of my time at the shop, so I have to figure out what to tell Walmart. I know the manager said he wants me to work at least 4 days and 3 nights, but that was when I didn't have plans of being an apprentice. Maybe I can work part time like 7am to 12pm and apprentice at the shop from 1pm to 9pm or later. I know I will figure something out, just need to talk to walmart on tuesday when I go to orientation. Somehow I need to pay for the gas to get to Odessa and back.