Yup!
So, I’d argue there’s two parts two good sex, the orgasm and the whole post coital endorphins, blood flow and good vibes described above.
For all but the orgasm, it’s not quite the same but after any exercise where I well and truly push myself just a bit past what I thought I could do feels fairly similar.
If you’re not in shape, swimming is pretty good for this as no matter what shape you’re in, you can push yourself to exhaustion without much risk of hurting yourself. When you’re done the lap after the one you thought would be your last, hug the wall, gasp for air and feel the triumph flow through you. If you’re not feeling rubbery, exhausted and amazing, next time, swim for longer and push through the mental wall that made you stop. Either way, you can always jump in the hot tub and feel like a champ.
As for the orgasm, picture a longer sneeze. Or the magnificent release of a pee that you’ve held in too long.
My first instinct would be to lean on whatever digital stuff got you through covid?
Or maybe there’s drop in sessions of whatever hobbies you enjoy doing with folks? I’ve met a lot of awesome immigrants playing rec league soccer.
Having read the other comments, is there much of a Russian community where you are? Even restaurants or some such?