Not at all - improvising is much easier than you think. I’ve got small children and get to a jam night once a month max. I’ve not practiced in years as kids and diy mountain don’t allow. At @How1 also
I got thrown in the deep end by a rude OM night host (just this Friday gone) who wouldn’t even tell me what song was next. I had to work it out, google the chords and come up with something, really quickly. Luckily there are sone basic rules about what works and I swam, sort of, rather than sank. I expected to sink, as you do. If you read my started threads, the story is there
where are you located ? Either of you that is?