I am soon gonna make a full review on this, but for now, I'm gonna add a few suggestions:
1. Add a lobby system where you can make your own lobby by adding restrictions or adding modes like only with friends, or hard mode. (you can make this only available when you get past half of the office job, your choice though.)
2. Add one-time abilities (or perks that wear off after a minute) that are OP which can be found in presents.
3. Easter eggs that you can find, example when you're working out one thing up to 100, it should say "Remember, sweating is good for your mental health! (insert thumbs up)" or something else you guys can probably think up something better.