A psychologist is a professional who provides counseling services related to mental health issues, mainly in the form of talk therapy. If you are in need of medication they will usually recommend a psychiatrist who is an MD and will be able to evaluate your situation and prescribe the appropriate meds.
'As human beings, our only sensible scale of values is one based on lessening the agony of existence. That plan is most deserving of praise which most ably fosters the creation of the objects and conditions best adapted to diminish the pain of living for those most sensitive to its depressing ravages.'- H.P. Lovecraft