@Separatedandabitsad - so sorry to hear that time hangs heavy. When I am home alone I read, practise a musical instrument, garden (currently shifting some shrubs prior to seeding new grass), watch programmes on catch-up, study a second language, talk to the cat. I also walk a lot (am usually a hillwalker and that's in abeyance) near the place where I live.
Today, for e.g., I have put up some Christmas decorations and made some more (salt dough and dried fruit slices) to decorate the tree at the project where I volunteer, practised said instrument (carols and a tricky longer piece), read a few chapters, done a little Christmas shopping and watched a couple of episodes of Spiral (BBC 4, beware, gory) which helps with my French. Have also talked to the cat (who just purrs and never answers back).
The trick for me is to have several things on the go and, if possible, not face doing any single activity for hours in one go. Starting Christmas cards tomorrow (the plan is 10 per day, but some days I will do more).
Boring things like housework get done in 30 minute bursts (I set an alarm on my phone). Sometimes I cook complicated meals, sometimes I eat cheese on toast. The beauty of singledom is that I can choose.
NB I may do many activities but am not proficient in any of them. It's the doing that matters, not the end product.
Best wishes, hope you get through the next few weeks OK