I hear you and sympathise as I know you've been under lockdown much longer.
I have an almost 3 year old AND 5 month old twins at home.
Fortunately my almost 3 year old went back to her small family day care almost 2 weeks ago. They allowed 3 kids with one carer and as there were normally 6 with 2 carers at the place they were able to split upstairs and downstairs.
I wasn't able to get anything done for 6 weeks.
Since she went back I've got a lot done.
I don't know how you do it.
Today she got to my printer/photocopier and printed 30 copies of what was on the platen before we caught her.