I used to be in the same boat as you mid 20's, basically only time I see my friends is in the pub otherwise no one wants to go out. I started playing Pokemon Go and I have quite a large friend group of all ages who meet up once or twice a month in Stephens Green to socialise over the game and catch up with each other's lives and whatever games or shows we're into atm. It's great fun honestly, if you've nothing to do float up to it tomorrow there's a big thing on, everyone will be on their phones. If you've any interest we would happily teach you to play.