Dont know what to do

I have been working at this small hvac company for about 8 months and im not making any money. I started out making 12 anhour and then jumped to 13.50. I went to school for havc and this was the first job that got back to me so I jumped at the offer. I knew it was bad pay when I was hired but i thought maybe after a little bit it would get better but hasnt. is it just commonsense to look for something else or should i talk to my boss about making more?