In my experience the only efficient blocking software is your willpower. I've been there and feel sorry for you
I’ve had a really bad week. My job had me quarantine in my room for the last 10 days (I really don’t understand the sense in that when we got tested 3 times while we were there). I’ve had nothing to distract me from being on my phone. I’m not gonna lie I relapsed a lot the past 10 days. And then today this girl tells me she really wants to hang out with me this Saturday and she really wants to have sex. If I had just stuck with the reboot I’d be on day 25 by then and could probably manage a proper erection. But once again I shot myself in the foot. Well...starting over again. Looks like I’ll be embarrassing myself on Saturday. I’m just gonna go through with it.