@Ellenwatson65
Hi, the decision is of course yours. But the timing of any decision is critical. Making a really important one when you are ill, probably depressed (at very least feeling isolated) and at the end of your tether may not be the best time. You can take a break, you can discuss what other options are open to you, you can seek another medical opinion.
It goes without saying this is a lousy time to be in hospital. Staff are trying not to add to your problems by getting Covid, but it doesn’t alter the misery of it. It also doesn’t help your thinking processes. If you can get a bit of clear light and space, you may well make the same decision. The main thing is to have no regrets, as @AllyJay says, there’s not much of a rewind button. Best wishes whatever you decide.