Yeah, it is important to get grounded. Friends, activities, sport which seems of secondary importance but in the long run primary.
I found climbing to be the best of all things. It shut my mind down (as I was very focused!)
I'm not even a hustler (lots of procrastination wasting many days), but I'm always thinking, "if I have to do stuff, surely it should be working" so I shut down sports and fun stuff.
Hard to force myself not to...