@Yetii you have to decide what is best for you and your family.
I personally had no immediate family, my DM and DS ( mental health issues) and DF not present and then passed. My grand parents were in a diff country.
My circumstance may be different to yours. I really was very alone and found working 52 wks a yr nigh on impossible with young DC's. ExDH helped where possible but did not worry himself overly about childcare generally. He had is job and on call hrs and childcare was " my "
issue.
I think i expected
people and friends to rally around me and reciprocate all the childcare i had given them but that never happened. In my case, my DC's were moved from childminder to childminder and i had had enough of the poor basic care they offered my DC's. My childminders cared for their own kids. There was really no love there for my children, my children were £835 per month to
them and thats it.
Colleagues also frustrated with me when my DC's were sick, when childminders DC's were sick, when child minder took her kids out of sch for term time holidays at short notice. All the time i had to take off. I was pulled in all directions.
The after sch club i then put DC's so over crowded. Crowd management , not child development. I just had enough of trying to be all things while watching my children unhappy.
If you have no support OP , working 52 weeks , with only 26 days holiday per annum, will be hard and you will be heavily reliant on people , who are not there to help.