nadateturbe
I have had the same problem. I think you need to have that conversation that Shandy57 mentioned. Perhaps mention some things that you can't do any longer so that he doesn't feel so bad. (Or invent some) Maybe agree a time limit by which if he hasn't done a job you get someone to do it. I do feel for your husband. Its not easy to admit you can no longer do things.
I did not find it easy to admit it to myself either, but now I delight in figuring out the workaround and think myself clever for doing so!
So maybe ask a question (what's the word)ly.
Like
"If someone needed (insert name of job) doing and they could have done it themself years ago, but can't now, how could they do it?"
"How do you mean."
"Well suppose that years ago someone wanted a new microwave cooker and went to the shop in their car, bought it, got it home, carried it in and then unpacked it and lifted it onto the worktop, but now can't drive and can't lift something that heavy."
"Order online and get it delivered."
"But then it is on the floor in the hall, and needs lifting and the person cannot lift it."
The answer is to contact a local electrician and ask him or her to get it from the shop and deliver it and install it, and pay them for doing it. Costs more, but no cost of running a car now, so it often balances out.
There are some jobs that someone should not do themselves ever, like installing a new electrical consumer unit or altering gas pipes, so just treat it as an extension of that.