I had external beam RT, followed by hormones; I'm 18 months into 3-monthly injections.
I get a fair amount of tiredness and lethargy, though I feel like it's stopped getting worse (we'll see!).
My approach has been to work through it: at 64, I'm retired, but I aim to do something 'significant' every day, as well as some light exercises, and keeping generally active. I'm also trying to get into routines (something I've studiously avoided all my life!), so that the things I should be doing, get done.
I initially put on weight, but I've managed to stabilise, and now I'm losing some of it. Maintaining some muscle tone is important, as HT actively destroys it.
Some days are difficult, but I plod on ... some days are just fine. It's still weird!
And, of course, I still look over my shoulder, wary of some new symptom creeping up when I'm not looking.
But I've kept up my social life; the only thing that's actively suffered is long walks; I just don't have the stamina to maintain a decent pace - and people don't make allowances (not that I'd want them to!).