I wish i knew the exact reason, but the best i can describe it is that these days i don't find enjoyment in playing alone (without being in discord with friends or whatever) casually anymore, i guess it's because i've been playing games for so long i no longer see the appeal in it anymore. I do however play (other games) with friends i have made online in a game i played for a number of years during and after my time on argonath.
It's just that if i see that none of my friends are online i won't even bother to start a game, it just feels like work, boring, i dont know how to describe it.
One could argue that playing samp is not really playing "alone" since it's a multiplayer game, however i never really connected with my ingame friends outside of the game, i remember all the good times i've had in this community but i also forgot a lot of it, and let's be honest, i've probably been forgotten too by most people and a lot of the friends i had in this game have left as well. Maybe that is one reason, playing this game for so many years and then coming back as a stranger.
Other than that, i also have a lot less free time due to my studies and i also picked up a new hobby since a shooting range opened 10 minutes from my house, a lot of my free time goes into that now.
Sorry for this disorganized rant, i really had no idea what to write and this was the result, i just had to write something since i end up reading this forum every 6 months or so but i never actually write anything.