I'm a general prepper so I know about this stuff. It's my "hobby", if you like. Best case scenario is it all goes away and is nothing. We all want that but it might not be like that. Next best case scenario is two weeks boring self isolation. Yes, you can ask your pals to bring you food but this pal has their own stuff to deal with. I'll help you up to a point as long as I'm not required to self isolate too. Next best case scenario is a general lockdown in your area when nobody can bring anyone anything. No one in your house is poorly but there's only so much TV you can binge watch before you get hungry or need a wee or do other hygiene stuff. This is where homestead prepping lite comes in.
You don't need to worry about utilities going off etc but you do need to eat. You probably have stuff in your freezer and cupboards but enough for two weeks. Frozen sweetcorn and spaghetti for breakfast, anyone?
And bog roll? Yes, there are general prepper approaches but who's got time for that shit if you aren't a prepper? You need to get extra but where to store it? Get a hold-all. Take the bog roll out of its packaging, squash each roll down and pack it in there. Yes, you might lose some on the outside of the roll, they'll look a bit bumpy but it's better than a bog roll wall in your bedroom. Or rejig your drawers 
to make space.
I'm not a medic, I am over 50 with an underlying health problem so my situation is different to you regarding getting poorly. Follow general advice about good hand hygiene and eating well to boost your immune system.
I hope the worst that happens is you get bored. Don't beat yourself up about being concerned. And stop willy waving about how it's all nothing to you and everyone else is being silly. Take back control of this situation and don't give in to hype either way. There's loads of great advice on here.