I haven't read the full thread, so apologies if I've missed something.
I lent 11k to a friend back in 2016, when my financial situation was completely secure enough to allow me to do so.
Things have changed, he has dicked about paying me back, and still owes me 9k after almost 4 years!!!! And I really need the money, and I'm suffering for not having it.
DO NOT DO THIS.
I have also lost a few hundred quid in interest that I would have earned, as it was happily sitting in a decent account. Actually, it might be more than 1k that I've lost.
It is the worst decision I've made in my life.
I lent it him to get him completely out of debt (mortgage arrears, credit cards etc) as he was paying over £100 in interest on his cards alone every month, and not touching the balance. So I agreed to pay it off, and he would pay £400 a month - so he's paying less than he was, I'd get my money back reasonably quickly, within 2 years anyway.
He didn't pay me a penny for 2 years, until my partner nearly hit him over it. The reason for this is that I paid his cards off in September, and he piled on them again at Christmas, buying his two kids all sorts.
It's ruined our friendship and is spoiling my life in many ways.