Should I move?

I’m currently studying in Petaling Jaya, Selangor Malaysia. But, I stay in KL. That is very far from my campus. It takes me 40 minutes to 1 hour to reach school. Recently, my clmates ask me to move in to PJ with them. Actually, it’s fine. But, my future roommate is quite serious. I mean her personality. I scared that I can’t get along well with her. My friends tell me better not stay with clmates. It’s because sooner and later will quarrel. I know my residence now is very far. I have to wake up 2 hour earlier before cl. If not I will be late for cl. I have to take taxi to LRT station everyday. Then, travel 40 minutes by LRT to PJ. Then, have to wait for the bus. The problems are I cannot make up my mind whether I want to move. The place that I stay currently is very comfortable compare to the apartment in PJ. The transport and beverage is very convenience. While in PJ the public transport is not convenience. My clmate have car, but I can’t rely fully on them right? Apart from that, I not willing to leave my sister. I will miss her dearly if I move out. We have to sign 2 year contract with the house agent, that’s confuse me. I afraid that I make the wrong decision.What should I do? I’m so confuse?