Op do you have room for a lodger? Someone who would help you with the kids for a reduced rent? Maybe another single parent? A friend? A distant relation? Ideally a 6 ft rugby player? But any trustworthy person would do. A junior teacher at one of your kids’s schools? A fellow parent? A work colleague?
And to eradicate the “pickle” bit; be as selfish as you can and do what you need to do, even if that is nothing.
You are trying to do what is best for everyone else but in this instance what is best for you, will be automatically best for the dc, because you are carrying everyone and everything. So you need to be in good shape.
So whatever you decide, it needs to make it as easy as possible for you to keep everything functioning. Even though it’s far from easy atm if that makes sense. It’s going to be tough but have a think
about all the ways that you can change your routines and your parenting and your accommodation to suit yourself now that your dp is gone.
So if you want to eat beans on toast off paper plates sitting on the floor and all sleep together on mattresses in the sitting room that’s fine! In other words, lower your standards and parent imperfectly to reduce the stress on yourself.
Don’t feel guilty about leaving your dp, I know he has mh issues or nd challenges and it’s not his fault he was intimidated by a neighbour, but he is choosing not to address his anxiety and when faced with a difficult situation, instead of sticking with you and the dc, and helping, and having your back, he added to your problems.
The upshot being that he is unreliable for whatever reason and it would be a mistake to count on his help as it will lead to disappointment, Definitely get as much financial support from him for the kids as you can. But treat any childcare from him as a bonus. Don’t make him a central part of your main plan for the future. Maybe in time he could look after the dc one night a week so you can go out and have a social life?
Maybe talk to your course administrators and get a deferral while you deal with this immediate crisis.
Could you go to Shelter or CAB and get some advice about housing options? You can’t be the first person who is worried about living in their home because of local crime.
Can you add some more electronic alarms and cameras to your home?
Is there any scope in your area for setting up a community based anti-drug neighbourhood watch type of organisation? Get in touch anonymously with the police about the drug dealer next door. If he could be forced out, I imagine your living situation would improve massively.
Can you and your neighbours go and see your local mp. Get them to put pressure on the local police.
Good luck 💪