Hi
i had gone through your query.
Sadness of mood, fatigue, difficulty in concentration,loss of interest, irritability on minor issues,loneliness etc may indicate
depression with
anxiety disorder.
But proper
psychological evaluation with physical examination may give more confirmatory diagnosis about your psychological well being.
It can be treated with different modalities like medicines,
psychotherapy and counseling, behavior modifications and cognitive behavior therapy.
Choice of therapy depend upon evaluation and diagnosis.
Beside this
Meditations, yoga,
relaxation therapy, deep breathing etc can help to reduce stress.
Proper sleep and health diet can bee useful.
Stress free work and discuss with friend can help to reduce anxiety.
still have query then feel free to ask.
Thank you.
Wish you a very good health.