Oh, sorry didn't see.
It was largely funded by my divorced parents. Father recently died, his share went to me. I contributed to the purchase of it (cash purchase), and I pay all and every bill. I've been fortunate hat my parents were in a position to do something like that for me.
As for my young age as for when I left home, I was initially kicked out and became homeless for a while. I then got into university (started when I was 16) in a different city. My getting into university was the basis for me and my family getting back onto speaking grounds. Various things have happened (ill health, followed a dream, etc) which have meant my university career has extended somewhat over the 4 year norm...