I love everyone i see, i get sad when i see someone in paine, my mood changes to go with people's mood and that's effecting my life what should i do?

Empathy: An outstanding quality but may need to seek counseling to remain empathetic but separate your pain from there's.

Acceptance: It's a truly wonderful strength to have the capacity to love and be loved. That first part of what you wrote is separate from the second part--about being overly sensitive/reactive to other people's pain and moods. This vulnerability, which interferes with your life, can be addressed in therapy or possibly by reading a psychological self-help book. Take good care of yourself and your moods!