we have moved to be near my son and wonder if we made a mistake

we have moved recently to be near my grandchildren. We loved our old house and area but my son and daughter in law felt the hour journey was too far to visit too regularly. Although we did not really like where they lived we thought being near the grandchildren would make up for it. They were expecting their 2nd child so we knew we hardly seen them before so with a second one it would be even worse. We did childmind for them 1 a week but was finding it financially difficult to travel every week and we were desperate to be involved with our grand daughter, so we made the decision to move, hoping the relationship would improve and it would show our son how much they meant to us. DIL parents only live around the corner so they would see them all the time and i was jealous of the relationship they had.
We only live 5 minutes away from them now.
We have only been here 4 months and now realise it was a mistake.
It hasnt helped with lockdown etc i know but they havent really been any support since weve been here. We are struggling with the house and its size and cant seem to get it right. My son has visited once since weve been here and didnt help at all with the move but as they had just had a new child i knew he had a lot on his plate.
His wife was struggling at first and i helped 2 days a week (I work 3 days) but it was getting too much so i had to tell him i could only do 1 day.
Things have been odd these last few weeks. Its been two weeks and he hasnt rung or sent any videos across. Ive sent a text and hes answered but his reply to my struggling with the house again was sorry its been a headache ill call you in a couple of days. Why are we here?
we are thinking of moving back but know that this will just ruin our relationship with our son.
Has anyone out there done the same and what happened.
Or have you got any advice on how i handle all this.
Its affecting me a lot now and i feel totally lost. Im scared about my job - im remote at the moment which is great but soon i will have to find another job too because otherwise ill be travelling back 3 days a week. But because of how unsettled i feel i dont want to get another job (if i can) in case i dont stay.
im driving my husband mad. He never really wanted to move at all and just did it to please me.