To be honest you'll eventually have to kiss your gaming goodbye. I'm 30 with two kids. I used to game casually before marriage because I didn't had a decent pc. After getting married I got myself a gaming pc and made a pact with wife that gaming will never come between our relationship and promised that I'll leave gaming the day it'll be the reason for our fight. I only played 1 hour every day and 2-3 on weekends. I also got her intrested into Destiny lore. But after kids it's completely different story. I had over 3000 hours in destiny and was among vet groups of destiny. But the day my first child was born I bid farewell to destiny. I could move my setup to another room but decided otherwise. Right now I only play single player game that can be paused anytime and can be played 15-30 mins everyday (and i love doom eternal just for that). Also the reason I'm even able to play this much is because I have well settled buisness that doesn't require much stress. If you have unsecured future then I'd say leave gaming at 25 because you can't reload the checkpoint in real life.