I am honestly trying to look at things this way, but I can only see farther into the future, when I have to pluck off a leech from my skin.
I have told the mother of a 'friend' of my youngest a few years ago.
She kept pushing for more contact, and I had her unannounced on my doorstep too. One day she called, pushing herself to another social visit, I told her that I'm not someone who likes people around to relax. That I prefer solitude. Especially at home.
She never bothered me again, it did not harm the relation of my daughter and her 'friend'. The woman would still abundantly socialise at the school gate though.
Having another cup of tea.
Once my sister came around with her two kids unannounced. I said that I had a headache and was feeling sick (which would have happened if they stayed) so they went home. My sister told my mum about it.
I am drinking Coke Zero.
I hope the caffeine helps. None of the metals in "coke" will serve you, though, I fear. (do some research and find what is in that popular drink, if you doubt what I have saiid, but do not make it about me. I did the research about thirty years ago and it has changed a hundred times since then, but most of the detriments still are present. It has been known for more than a quarter century that Coke shit is not healthful to most of our bio-systems)
I am on coffee, stillll. I had the besy night of sleep I have found in ages, LOL!11111111111111
OK, despite all the positive anti-oxidants in coffee, there are still some negatively performing oxidants that we consume as coffee drinkers, but we have to weight these affects against our personal health.
I hope that Coke is one that you can tolerate, TBH.