reboot for many days last month but relapse again :(

I've kept no PMO for about 30days in February, it's almost my longest record of nofap(another one is about 40days after having a surgery), after the relapse, I had another 11days period. BUT shame of me, I made cybersex online and masturbated 3 times during past 3 days, I regret very very much. I was supposed to build my muscle and study for school work every day, but I ruined my plan. It's so hard when it get to about 7days for me.
The problem is, my brain loves the feeling that cybersex gives me, it makes me feel like I'm liked by many girls, while I haven't talk to real girl for a long time. I've just failed at going after a girl I liked(maybe it's the main reason), and I have to stay at home because of the coronavirus. I'm mentally lonely. I know that I can still find a girl online to just chat about normal life but not horny things, but I just can't help to do that. Maybe in that way my brain can heal the feeling that hurt by the girl who reject me. I need some advice.