Well I suggest regular grounding and shielding to help you with these energy problems. You might also benefit from daily meditation and journaling your thoughts/experiences to help find your inner self.
Regarding what you could be, you're human. Perhaps look into psi vampire, but I can't narrow it down much from there. I'm clairvoyant and an empath but I stumbled into it and never really delved deeper I'm afraid. Personally when you pick up on human emotions easily it can cling to you harder so find ways to ground and cleanse this energy whenever you can or it will overwhelm you. Best of luck.