I've found going back part-time to a job I'm not enjoying much very hard if I'm honest.
I'm not sure how much of it has to do with hormones and the fact that not long after I went back, I fell pregnant again, lost the pregnancy and then fell pregnant with this one, so haven't had much normality.
I'm in the sticky situation of my full-time wage being significantly more than H's, so even on 3 days per week I only earn a few k a year less than him. For me to give up work would mean a big change in lifestyle. I also find that work is getting me down more and more to the point where it feels like if I didn't have ML looming, I'd be cracking up. (how loony do I sound?)
I am hoping to have a good long think about my career over ML (I'm going for the full year again) and try and put in place a plan of action. Luckily, H's salary should increase over the next few years and maybe that will give me more options. Also things could change at work particularly management wise, which could have a huge effect on my happiness there.
Sorry for the long me,me, me post. I guess my point is that I understand the quandary you're in.
Good Luck making a decision.