Financial talk

HI! I'm 20 years old and have two credit cards I'm paying off. One is my personal credit card that has about $600 on it and the other card is a card I shared with my mother that has $1300 on it. I've taken over the payments on the second card which has made my college life very hard. Someone told me I could transfer the debt to one card and pay one payment instead of two. I currently pay $300 on each card every month but that's getting harder to do. And to top it off I'm still using one of them for day to day purchases. I'm very aware of my credit score and I dont want to hurt it anymore by doing a balance transfer. I guess what I'm asking is Should I do a balance transfer and if so what should I look for and what questions should I ask. P.S. These two cards have a high interest and I'm no longer capable of putting so much money into both accounts. I'm basically living off of one of my cards. Basically I use it on everything and use my paycheck to pay it off. It's never ending!