You should spend as little time online as possible. Try spending time with real people. Face real situations. You also need a personality profiling. You should visit a psychiatrist who after screening the probable illness can refer you to psychological help.

Engage yourself in some social activity and mingle with unknown people eg. Treks, ngo activities, charity occasions etc. . You might find someone who matches your expectations of a partner. Stay away frombdating sites. Those are not 100%  reliable anyway. If you need mental calm ,Homoeopathy can help you well. Exercise regularly too. Relationships happen when they have too. Nobody can decide when. If u wish to get married , you can meet prospective partners through arrange marriage system and mingle and see if you can decide for your lifetime. It might take months but if you click well, you would be happier forever! All the best !

Hello my friend...just remember "Broken heart and shattered dreams are key mentors for weaving a glorious destiny."...Consult nearest psychiatrist as you require detailed counseling session and you may require medications to solve your problems as many things can't be discussed in forum like this...With that fallow relaxation techniques like yoga, meditation,avoid alcohol, smoking, coffee, tea...have good sleep and develop healthy food habits..good luck