I feel you are not yet over with that past issue. I would like to suggest you to visit a Psychologist immediately.  If it is not possible,  do consult online through this portal. Take action at the earliest.

As suggested by Dr Amitabh you must visit a Psychiatrist, but in addition to this regular therapy sessions with a Clinical Psychologist will definitely benefit you, because recurrence of these symptoms is also signifying the presence of some negative thoughts that seem to be bothering you thus a Psychologist can help you deal with these thoughts and also improve your coping skills.

Hi. Having depressive episodes again after a gap means you are suffering from recurrent depressive disorder. Since, you are also having suicidal wishes, you should seek a Psychiatric consultation immediately and start treatment. Since this episode is a recurrence, you need to continue treatment longer than in usual cases.