Being single can be massively freeing, especially where work is concerned - you have many fewer ties geographically as to where you can go to find work. If you can travel (car, train, whatever) then you have a great blank slate to work from.
It can be daunting starting again but you just need to handle your shit one step at a time, and you have the luxury of being totally independent.
What restrictions do you have? I understand that nobody is an island, rather that it can sometimes be helpful to reframe things in your mind.
Obviously there are immovable restrictions (you are a carer to family, or can’t leave an area for any number of reasons), but sometimes it can be helpful to view things from a different angle.