I'm almost 27 but I think what influences the most is your day to day life, if you work, if you spend your day outside the house, if you're tired at the end of the day, family problems, etc. Because you can be 27 and still have that college life eheh

I forgot to say that I play RPG's which require more attention and focus because of the story. I also like to feel immersed in the game world which is more difficult if I'm feeling tired or anxious. When I'm in one of those "worst" phases I usually play lighter games like play fifa or nba 2k.