Should I work as a cashier at Kroger or as an Early Childhood Assistant?

I started my first day at Kroger the other day as a cashier. It was fun and I really enjoyed the environment. But I am also going to be hired to work as an Early Childhood Assistant. I don't know which I should pick.

I can work part-time at Kroger and make $11.40 an hour. As an Early Childhood Assistant, I'll make $15.00 an hour working Mon-Friday I also have school too (online from home) I'm going to be studying Mental Health/Art Therapy. I guess I won't really have much of a life if I pick the Early Childhood Assistant position. Because I'll only have Saturday and Sunday's off which I'll be doing homework.
Should I work as a cashier at Kroger or as an Early Childhood Assistant?
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