when you find the star map on dantooine you can go to four different plantets 1.kaaaaassssshhhhhyyyyykkkkk?. 2. koriban. 3. tantooine. 4 mannan when you go to koriban and you've become a student of the sith you will be in a sith base go get the holocron from lashowa and go back to the person that gave you admittance to the base of sith and ask her about the sith code and when she is done say i think i've got it and stop talking to her then it will give you 125 exp and then you just do it all over again and do it as many times as you like until your pleased with all of the exp you got and level ups you made
P.S. i just found all of this out so dont break my heart and make me mad or i will get really ing angry
P.P.S i'm gonna keep doing it till i cant level up any more
heres a tip do it as many time as you can level up but dont level up save for future battles.