RP is the surgery, radical prostatectomy
RT is radical radiotherapy, usually referring to external beam radiotherapy
Laser treatment / green laser / cryotherapy/ HIFU / FLA are all focal treatments rather than radical - the aim being to treat just the main tumour cluster(s) rather than the whole gland (radical). Focal treatments have fewer side effects because they are targeted but they are rarely curative - e.g they may need to be repeated in the future.
It seems that RP has already been ruled out for you.
I don't know how the other guy is doing until I find his posts but hormone therapy on its own is not curative and will at some point stop working.