For me (36M sissy/beta sub), the longest I've gone is 52 days. I was helped motivationally through the first 2-3 weeks due to healing from circumcision.

I do orgasm denial to try and elicit my more submissive and feminine sides. The main negative effect is that it can make me irritable or cranky; also getting stuff done as opposed to looking at erotic content online for lengthy periods of time due to unrelenting horniness can be really tough.

I ended that 52-day streak because I was questioning why I was doing it, and gave in. It was an interesting orgasm. Ejaculation-wise, it was a solid 7/10 come - I was a little disappointed tbh but I didn't fap for long. However, psychologically, it blew my mind; I was giggly and tingly in a 9/10 kind of way, which I loved. A wild guess is that I might need to go without for a month to experience that. idk. (My baseline is ~4 orgasms a week.)

I'm on another streak now, and I'm trying to be more focused in why I'm doing this to set a new personal best, heck, ideally, go orgasmfree all of 2026 🤞😘