exercise, sex, your fav hobby, etc. From what you mention (dealing with scope creep) it sounds like it can get worse than it is now. That's a recipe for burnout and you gotta have something to take your mind off of work when it's at its most stressful.

I would focus on bearing the next few months and then either take a vacation or look for a new gig. Esp if the stress was caused by lack of pre-planning and scoping. That doesn't sound like your fault.

I left a fulltime gig last April cause of burnout (Software dev/freelancer so I know bout scope creep!!!) . They offered a leave of absence but I declined it saying I just needed to bounce from the company and find something new. If you have the resources (funds) to give yourself that kinda break it is definitely worth considering. My life is so much better cause of it.