Chronic depression with insomnia and OCD

I have been suffering from OCD on and off and for which I had taken ecitalopam in past but currently I'm not on any medications plus I suffer from insomnia from last one year I can't sleep on time and if ever I did have to change my sleeping time or I had to be awake at night next day I cannot sleep at night I will feel sleepy in mornings and it's affecting my performance and I start to have OCD symptoms of washing hands and face and it's affecting my whole health as I feel fatigued after feeling helpless with my mental health I just need to know whether I should consult a psychologist or psychiatrist coz I also had a PTSD after my father passed away and many people who did me wrong and I cannot move on and it keeps on occupying my thoughts dominantly