I am a buddhist, and i have a harm OCD

i need guidance for a problem that i have for 5 years. I have a harm ocd, i keep having this extremely bad imaginations about killing family/holy beings and destroying holy stuff. The thing is, i REALLY REALLY do not want to do any of this, i love my family, i feel blessed knowing about dharma and stuff. But somehow, this dark bad repetitive imagination keep playing on my head. There is even this 'inner voice' who keep voicing things like "I want to kill X" even if I REALLY dont want to. Is this counted as bad karma? And what should i do? Just let it pass or maybe i should keep hurting myself so it will stop? Sorry if this sounds weird. May all of you have a great day ahead. Thank you