What can i do? (Score 0)

I'm on call 15 days in a month. I receive on average 2 calls each month mainly at night. The company i work for doesnt pay me a bit for extra hours. I would gladly change this crap for another job, but its difficult, most of the jobs in similar positions pay less that what i'm earning currently( yeah even without getting paid for extrahours) I have been considering working as a freelancer, but still it scaries me a little bit. My social life is practically non existent while being on call... Help me!!!!