[need help]

so i have been out of the game for awhile ( about 4 years) and i guess alot has changed, mainly for me the exp!! i need someone to help me with this and show me how to lvl up and gain exp properly. i have been checking other posts and such and have determined that you need people with the same lvl (aka. lvl partners) to help you out. well i am currently at lvl 1 cause i cant figure the damn exp thing out. so if anyone can help or could be a lvl partner to me plz let me know. dont reply to this post cause i dont check the forums often but send me a private message. my name in the game is dabombSTI. thanks for any help!