Welcome to Healthcaremagic Forum
A lot of people go through rough phases in life, and feel low, angry, guilty, frustrated at that time.
One such episode does not necessarily indication the presence of a major psychiatric illness.
But yes you are "feeling depressed", so remedies (homeopathic
, bach flower ) along with counseling can help here, which can help you with your mood swings and coping with the problems you are facing.
Its common for unmarried females to feel low , during such a phase (searching for a groom) , where lot is expected from you , plus there is a fear of rejection, then there is anticipatory anxiety
Please feel free to visit an expert.