LARP and loving it?

role playing: the immersion of yourself into a role different to yourself, and a type of escapism.
SO, when surrounded by 17-20 year olds who wanted to continually refer to tables, comment bout their armour class and what levels they were, I was not having a good time.
Luckily, I was with some old friends and some newly made ones - got drunk, and entered into the world of uni drinking.
again.
BUT - and this is important - my tolerance for both extraneous activity AND drinking is lowering. Quickly. I slept. quickly. And resulted in getting a bit drunk after a good meal and promptly entering the world of sleep. Due to the ability to sleep anywhere i feel safe, I closed my eyes - had a powernap. Then another. Then moved to the other sofa so wasn't in the way of trhose talking [yes, left the campsite when we realised we were not gonna have great fun playing munchkin...]
I'm now typing while everyone else has retired as, yes, I've slept, they haven' - they're drunk I'm now sober[ish] and alone.
So loving it?
No.
I need my old stamina back - I'm becoming outsider in my own groups of friends due to lacking in energy. OR needing more sleep. Or, frankly, self choice on some weird subconscious level as i'm not able to keep up pace anymore???
30 in November. still youngest in this group of friends right now - yet here i am, typing, and they are now sleeping [just before 6am now]
too many thoughts now of negative inclination - now feeling bad in itself, just aware that alcohol, loneliness and general state of needing to be awake/asleep is not conducive to a strong mental health package.
Good night - I'm, good. just needing to accept where i am again before i move one - again.