Work

I'm beginning to regret taking on a job. I like work and all, but my scheduling is so irregular. I don't know what to do. I want to do tennis, but someone told me that practice was everyday afterschool. I also have to work Saturday. That's like a prime time! I don't want to work when it's super busy.... I'm so scared to actually work during a busy day. I can barely handle a semi busy day. Oh, plus another thing with tennis. If I do it, games are Tuesdays and Thursdays. Sometimes I work Thursdays.... Sometimes i work Tuesday's.... Well I only worked one Tuesday and it was pretty slow... But I'm scared to say I can't work because I'm going to be doing tennis. I don't like confrontation. I'm scared if the manager and boss. I think I'm working with the boss today (Thursday) and I'm so freaking scared that I'll get fired! So freaking scared!!! Ugh! Hate this. So much stress. But I can't quit after working for like 5 days...