I've been working at this organisation for just over a year. It's part-time and although I have one line manager, I effectively work for two different managers on two separate workstreams. The problem basically comes down to not enough hours to get everything done. I feel permanently stressed and exhausted trying to meet all of the deadlines. It's a fairly junior admin role but it's a small team and so I feel more overwhelmed/greater responsibility than I have in any of my previous (significantly more senior and therefore better paid roles). I took a lower paid role as I wanted more family time/more flexibility and less stress - but this has not proved to be the case.
My line manager is generally supportive but I don't think he has a proper understanding on the extent of my second workstream as this is outside of his area of expertise/responsibility. I also recognise that at least part of the problem is me - I want to perform well and to a high standard and so put in the extra hours to achieve this when I should be saying no - or cutting some corners/standards.
I like the job and the team and want to make it work but struggling to see how to manage it sustainably going forwards. My resentment is building in the background. I've taken some TOIL/unpaid leave over the holidays to spend some quality time with my family (I really was on the verge of quitting due to burnout) and have just realised that I'll end up working late for weeks when I go back to catch up - which will be really stressful (there is no-one to pick up my work whilst I am away.
Any advice welcome, thank you