If I was starting now, I would hang progressively higher weight up to about max 15 pounds (however long that takes; for me it was many months) for 3 sets of 20 minutes or longer, finish with 1 or 200 jelqs, 10 min pump @ 5 in Hg (no more than that - I found more does no better), then transition to clamping after a few months. Apply heat before starting for 5 to 10 minutes. If you have time, extend for an hour or two at the end, then wear a girth band or sleeve for as long as possible.
I think my rapid gains, although slow now, are possible by most if you’re consistent. By consistent I mean figuring out a schedule and sticking to it. I bounced around for a bit but settled on 3 on, 2 off, then more recently 4 on, 2 off. The only times I didn’t stick to the schedule was when it was impossible. I even brought my stuff on long trips. Even now, I’m still gaining just a lot slower. One other thing I did was copied what others who were successful were doing and adapted it for me. I did lots of experimentation but I’d say maybe 30% or less actually panned out. Hanging and clamping have made the biggest difference for me. Crazy high weight doesn’t really help unless it’s for a very short time. I recently added extending in an attempt to kickstart recently very slow gains so if time is an issue, adding that might be overkill if you’re starting out. Good luck!