Addiction?

I have really bad anxiety, depression and PTSD (yes this is related to masturbation bear with me). Recently I've been feeling really disassociated and depressed. I've been in a constant state of derealization for about a month and a half, and I mean CONSTANT. I felt so ungrounded and just so float-y and anxious constantly I didn't know what to do. It sounds weird but when I'm having a panic attack sometimes I just gently rub Down There™ to forcefully draw my brain to something else. It's better than my coping skillset before to calm me down from such a hightened state. I've never really masturbated though nor orgasmed until a day or two ago. I decided to try masturbating again and had my first ever orgasm. Afterwards I instantly, for the first time in months, actually felt like I was in my body. It felt wonderful and mindblowing, but the issue is now I wanna keep masturbating- like every few of hours. I'm scared I'm going to become addicted if I'm not already but I don't know what to do. I do have A LOT of coping skills, I've been going to extensive therapy for years. The issue is my anxiety is SUPER bad, like I've had to drop out from highschool because I'd pass out on the way to school bad. No amount of healthy coping skills works, no deep breathing, no tapping, no grounding techniques, no meditation, nothing when I'm in such a hightened state. After masturbating I havent felt like I had before though the feeling is temporary. I'm not really sure what to do at this point, if I should keep it up or not. Any advice?