what should i do my employer is taking advantage of me?

[themostrandom]

im working an entry level job. im getting paid $12.00 per hour and they cut my hours after 3 months so they don't have to pay me for full time or give me benefits. im pretty young , i graduated college a year ago and have been with this company for 7 months. i have asked twice for full time and the answer has been "we will see what we can do" (by the way if im not mistaken im the only person in the office working part time, im the only person without a name plate). In the time i worked there i have made a decent amount of contributions to the company.

when they i first started work for them, they had 2 crappy bad quality videos they used to train employees that was uploaded on their website. i went ahead made a nice respectable looking youtube channel for them, uploaded several videos in my own time to better train new employees, i recorded high quality training videos with my own audio instructions. the company is happy with it and uses it. i also had an idea to make payroll calculator for current employees to use , which helped many employees. i also came up with ideas to improve their facebook, several other ideas that the company uses. i also want to point out that none of this was asked of me to do, i did this at home in my spare time, so i guess i cant complain all that much.

in the time ive worked at this company, ive been given minimal training and my job duties have been limited to mostly data entry, scanning and filing. i have not learned much of anything at all to be honest from this company, i feel ive been a greater asset to this company than they have been to me (teaching others what i know moreso than them teaching me anything), the only thing this company has given me is provided me with a good track record and learning to work with others.

i really want to quit, there is no growth, promotion, pay increase for me at all. ive been looking for another job for 2 months, sent out over 100 resumes and no luck. i feel like im being taken advantage of because of my age and due to the fact its a really bad job market that i cant do anything about it anyway.

what should i do my employer is taking advantage of me??? do i have a right to even complain? should i go to work and do the bare minimum?