How can you find balance in your life?

I live a very unbalanced life by default, and generally can't trust myself not to fill up as many hours as possible with work. Some tricks that have helped:

• making plans many days in advance with other people, which forces me to take a break
• traveling, which always gives me a fresh outlook and some social interaction
• co-working, which is often just a talking and hanging disguised as work
• group chats, which are another way to be social during the day

I find balance by making sure the number of people working harder than me, is equal to the number of people not working as hard as I am.