If your cancer is in an advanced stage, I would look into adding an androgen-reception signalling inhibitor (ARSI) at least. ADT is the traditional treatment for prostate cancer; adding an ARSI is how everything has changed over the past few years.

Examples: abirateron (Zytiga), enzalutamide (XTANDI), apalutamide (Erleada), and darolutamide (Nubeqa).

It used to be that they waited to add an ARSI until the prostate cancer became castrate resistant, but the big TITAN study showed that adding apalutamide (at least) to ADT earlier made a massive difference in overall survival, so much so that they had to unblind the study before it was done for ethical reasons and let the placebo group switch over.