I will like to provide you two options , since you will not like to use medications which by every mean can prove to be most effective ploy to overcome this state of mind of yours.
1) CBT ( Cognitive Behavioral Therapy ) to be sought from a clinical psychologist/ therapist which shall help you to learn coping skills and strategies to endure stressors of life and make you emotional stronger so as to overcome present loneliness and mild to moderate depressive cognition.This therapy can actually be an eye opener and may actually help you achieve closure to your past emotional issues dating back to your childhood which may be have having an effect on your present.
2) If this CBT has been tried already then the second option that I suggest is TMS (Transcranial Magnetic stimulation) which is a new non - Invasive procedure where in by using magnetic field placed on the scalp , areas in the brain which are involved in causing depressive cognition are stimulated and depression is allayed.
It is usually given 5 days a week by a psychiatrist in an outpatient set up mostly without any invasive procedure involved and the course of treatment with TMS ( r- TMS , that is repeat TMS) spans over several weeks usually 6 weeks or so. A gradual lifting of mood and relief in depressive features including loneliness shall be appreciated as time will pass by. It is a very safe procedure .
Kindly see link below for more information on TMS..
So kindly discuss these two options with your doctor or therapist and choose one of them , both of them do not involve use of drugs as per your liking.
I hope this helps.
Wish you all the best.
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