Plant it in some fresh compost. Don't drown it with too much more water, just keep the compost damp. The old leaves may drop off and new ones will appear in time. Don't be too impatient, it won't recover over night, but will probably do so slowly in its own time. It doesn't look too bad actually, in the picture. Plants grow at their own pace ... which is usually slowly.

I bought a variegated one a few months ago and didn't plant it up, and forgot to water it, and it became very dry, but it is now in a tub and doing well.

Hywel, thank you for the encouraging answer. I haven’t soaked it, just gave it a much needed drink. I’ll find a pot big enough, remove the old compost and give it some new stuff. The leaves have started to perk up a bit already so maybe they won’t fall off en masse 🤞🏻
Katy x