I could have written your email a few months ago. The suggestions of take time off have made me chuckle. I tried that and every single day I ended up having to work for some of it. Things came a head, i arranged a meeting with HR director and told her everything. I told her I couldn't do this anyone and I need help to make a change.
Short term: you need to take control of your diary. So book phantom meetings with Mr Smith, and leave the office at those times for the meeting (if you book a room, great, or
Use a breakout space or coffee shop if that's possible.
Use auto-reply to set expectations. When I'm really busy and need peace to think through a problem (I'm also in analytics) then I turn on my OoO and say I've closed outlook to avoid distractions if it's urgent call me (without offering a number). Otherwise I will check them at 2 fixed times in the day. The key is to then close outlook. I've found people can cope with this once or twice a week (was a revelation).
Block time in your diary for work.
Reply to meeting invites that don't have a clear agenda, or clear requirement for you to be there with a tentative & ask for clarification why you need to attend.
My company have 3 key objectives for the current quarter. If I am asked to do something that doesn't fit into those objectives then I am entitled to refuse meetings / work.
Set up a backlog of tasks. Things people have asked for but you don't have time to do. That way you have a ready response: resource means this has been put in the backlog.
Finally consider getting something like a self journal from bestselfco (I don't work for them!). It helped me to focus on priorities and the bigger picture.
Finally, it's hard but you have wean yourself off work. I started with leaving laptop locked up at work. Moved on to turning off phone. Now I'm trying to stop thinking about work during time at home.
It hasn't been plain sailing. I found saying no to people the hardest. I also discussed with the senior team that long hours are a symptom of one of two problems: either you have too much work for one person, or you're inefficient. Either scenario requires management support.
I hope my long
post is of some use.
