Part time jobs while in school

Hi everyone. I didn't know where to post this on here, but I'm looking for a part time job while I'm in school full time. I'm not going to school for nursing anymore since that didn't work out. So I'm in school getting a B.S in cardiovascular technology so I can be a vascular sonographer. I have NO idea where to look for a part time job. I was going to do an EKG technician program that is at my local technical college that lasts a few months, but it turns out no one is hiring EKG techs where I live at and I read that demand for them is going down since other health professionals are learning about EKG on the job.

Right now I'm currently waiting tables and I'm extremely tired of waiting tables and have been for 8 years now. I'm not making enough money and I'm miserable. I really want to get a part time job in a health care setting. I will eventually be doing an 18 month internship after I'm done with my courses next year so that will give me experience in my actual field, but in the mean time I REALLY want a job in a health care setting. Can anyone please give me suggestions? Thanks everyone for your help.