Unable to get erections to porn, no morning wood , 24 yo.

As the title says, I never had any issues with erection until the age of 22, i used to masturbate a lot , watch a lot of porn, migrated to a new country at the age of 20, didn’t have much friends , felt stressed, had very less female interaction which made me feel very lonely so I resorted to porn and masturbation, but never ever had any issues, all that is resolved now, by the age of 22 I started noticing that I wasn’t able to get erections to porn and had to constantly stimulate my penis to get a decent erection, which would deflate like a ballon the moment I stopped. Morning erections gradually disappeared, spontaneous erections disappeared too, I would get super horny but no erection? Now I’m currently on daily 5 mg cialis and take 20 mg of on demand cialis but the issue persists, I get an erection and deflates like a balloon even if I am sitting in my room all alone watching porn, I tried staying porn free for 2 months nothing happened, had a Doppler done where I achieved a grade 2-3 erection despite injection and it showed no venous leak? Although I don’t know how reliable the test is with a soft erection for a negative venous leak, all said my gp says everything is all right, I’m not stressed, anxious or worried while watching porn and still can’t get an erection, I’ve already tried porn free for 2 months and my blood tests are normal, my pelvic floor is fine as well I’ve been to the pelvic floor pt. Idk what’s going on.