What strategies do you use to avoid overworking as a freelancer?

[Shortie]

It's easy to get yourself into a rhythm when working as a freelancer and not realize that you need to take a break and time for yourself. This can often result in burnout and can also in some cases affect your health if you are not careful.

What strategies do you use as a freelancer to ensure you do not over work yourself? Any tips you could give to new freelancers to help them avoid overworking?