Hi there ~
You should seek medical help
. You have a problem with alcohol. I am sure you also have impulse control issues hopefully related to alcohol abuse
since you had unprotected sex. I feel you might find help with seeing a therapist or a mental health counselor. You also should have a complete health check for any problems related to alcohol consumption and sexually transmitted diseases.
I hope you take action on the above mentioned issues. Take care and have a lovely day !