You do have to balance them. Balance means including pleasurable activities. You won't be as effective at the work and school things if you aren't allowing time for yourself too. Obviously, if you avoid the work and school things entirely, that will create bigger problems. Balance is the key. Maybe you can do one thing for 15 minutes, and give yourself a 15 minute break, and alternate like that. Plan out what you need to do. You have to balance your priorities/demands, your wants/shoulds, etc. Out of balance either way is out of balance.