Been nice wanting to join the guild but no one is ever on you guys still around?

hey there i just downloaded and got a free boost so i used it to make a commando and im on defeat Vaylin's spirit i never stopped at a trainer at all from 65-70 having a heck of a time killing her.. my question is can i port some were to train then go back to that part? if so how would i go about doing that? or am i SOL ? thanks