34m. Starting help, advice anything

34m have gad, panic disorder, ocd, porn addiction. depression, heartbreak, insomnia, low appetite, control issues. and severe agoraphobia. I had a brain tumor in my frontal lobes and work from home. I don't and can't really get out and socialize I'm scared to basically leave the house. Went through a really bad break up and made my agoraphobia worse. Was in therapy but it wasn't helping. I got serterline the other day and terrified to start. Was going to cut a 25mg Into 4ths and start with 6mg for a couple days and slowly work up to 25mg. Scared of dizziness and increased anxiety or panic attacks. Scared to make things worse and not be myself anymore. That's why I want to start super slow. Need help and advice