Hi,
A good starting point for practical advice around finances, benefits, the whole divorce/separation process is citizens advice. They were great with me at the start and helped me write up a practical plan of what I needed to do which really helped me. Regarding your children, is there a family support worker / counsellor at their school? Ours has been great. She is helping us write up a parental plan and ‘checks in’ with our daughter regularly. She’s assured me that if she thinks our daughter is struggling or needs some counselling, she’ll help us through that.
Take each day at a time, get yourself up every day and, if some days, that is all you can manage, that’s fine. As DMP said, find someone (friend or counsellor) who you can talk to, it really helps.
I’m 5 months into this and it has been a very long, intense few months but the good days are beginning to outweigh the bad.