Regular ol' 21 year old college student here. I've worked at the same grocery/health store for two years. I used to get a pleasant 35 hours a week, but now I'm down to 15 to 20 hours. Now this might seem small but almost all the other workers only have 10 hours. I CAN live on 15 hours but I just feel like I should try for me because of my age. My manager told he I would get a lot of hours since I am a good worker. But, it's barely changed. 

I think I should get a part-time job but I'm afraid if I ask for half of the week off I'll only get 5 hours at the other job. I also don't want to mislead my manager since I already told him I wanted hours weeks ago. I thought about being a camp counselor but then I can't keep my job at all. I have social anxiety and I'm super shy so I'm not even sure if I can command 5 kids. What kind of jobs should I get? Should I just settle for what I have?