What is the IB program like?

im going to take the IB program nxt year but im really nervous and excited about it because i dont know wut its like at all. Im taking HL physics, econ, english and SL art, spanish, math. I already know that its going to be extremely difficult but i know im a dedicated student. Will i have time to hang out with friends and still go out to parties? or will i have to give all tht up:(