The symptoms described by you points towrads depressive disorder.however a detailed evaluation will be needed.
Many times family/social support plays an important role in recovery.
Next Steps
consult a psychiatrist ASAP, especially when u have the suicidal feelings. it would be good to reach a proper diagnosis followed by treatment and therapies.
Health Tips
try to stay with a group of people maximum times.
remember whatever it is,there's medicine that can treat it.
for diagnosis and consultation can contact me online