Should I quit this job?

I work at a bowling alley and I’m not happy where I’m currently working. I’m pretty much working where they put new hires which is pretty much a grunt. I feel like a flunkie working here! I’ve tried to get moved up into a new postion many times and they’ve let me start to get trained at another position but it’s sparingly maybe once every 2 weeks I’ll get a shift at that position. First they complained that we’re low staffed at my postion but continued hiring people at the postion I’m supposed to be getting trained at. Now they’re complaining that I have bad availability and that’s why they won’t give me any hours in a new position. I only have 2 days called off Tuesdays and Thursdays mainly because of college. But I know if I gave them those 2 days I know they would schedule me for 7 straight days at the position I don’t want to be at. I would probably quit midway through the 4th day in row lol. They’ve given me a couple of raises and I get tips too when I work but those are starting to not even matter to me anymore. I want out of this position

I’m not a flunkie and I know im better off somewhere else. I want to leave but I need money to help me get through school. My parents always told me the best time to get a job is when you have a job, but its super hard to get one especially somewhere where I’m gettin a degree in because I would need a degree to get the job. It’s hard to find entry level positions somewhere for what I’m going to school for.

so should I leave right now even without securing another job? should wait until I get one? or should I just stick it out and wait till they finally move me to a different position? even though they been showing me that they’re not trying to move me. please help I’m almost desperate for any kind of advice right now