Questions on reboot/relapse

I recently made the decision to make my computer and phone porn free, toss my porn videos and my old dirty magazines, and make a serious run at reboot.

I had just gone 10 days without ejaculation, probably the longest amount of time since I was 12 years old. I didn't look at porn or physically touch myself, but I closed my eyes and thought about a girl I know and was able to bring myself to orgasm. I was concerned afterward, because it came out very concentrated, like syrup, and a lot. I feel like it was unhealthy for that to be welled up inside me.

I have some questions.

Is what happened okay or not? What qualifies as masturbating? If you don't touch yourself, but you orgasm, is it still masturbation?

Is it possible to reboot if I just stay away from porn and porn related behaviors? Is it okay to do this every once in a while just to clean out the pipes, as long as it doesn't involve porn?