That is super super SUPER annoying @philadelphiafreedom I feel your pain.
I live about 30 miles north of my extended family now - cousins and aunts etc. I am in a different county, and I go to a town 5 miles north of where I live to do my shopping. So the town I used to go to (and that THEY still go to,) is 35 miles south of the town I go to now... SO I never see them! And they never see me! (Only maybe 3 or 4 times a year for 'family events...')
I am so glad, because like with you, every single little thing I did, was monitored and reported back to my parents. Not only when I was a teenager, but also when I was in my 20s and 30s, and married with my own home, and with children.
EG... My one cousin 'Jane' (just 9 months older than me, but who acted like I was a child,) once told my mother that she had seen me giving the V sign to a van driver. He had pipped his horn and shouted 'nice tits' out of window at me, and as he drove off I stuck my 2 fingers up.
When I saw my mum, she said, 'honestly Willow, they're all talking about you being so rude to a man driving a van!' I said 'FFS, he shouted nice tits out of the window at me.' But it had gone all round the family what a cheeky, impudent individual I was. My mum said I should be bigger than that, and not show myself up!
I was 30, and had my own home, and I was a mother. Yet they were acting like I was a naughty child.
A couple of neighbours were gossipy too, (my parents neighbours) and reported back if they saw me coming out of the pub.
Even when I was in my mid 20s, had my own flat, and was virtually still sober. I got scolded for 'looking like an alkie - being seen coming out of the pub twice in the same week!'
I also had a male cousin of mine, who worked at the same place I did when I was 20, tell my parents that I had sworn at work. SO I got a scolding for saying the word 'shit' in the factory I worked at. When I was 20!
I was still being gossiped about and judged in my early 30s, (and as I said, had my own home, and was a mother.) I believe it was because I was the youngest of 9 cousins, and was quiet and timid as a child, and they thought I should behave in a certain way... subservient, and 'ladylike' and well-behaved!
Once my parents passed away, (mid noughties,) I moved away. One of the best decisions I made was moving 30 miles away. No more judgy extended family or neighbours.
I would move too if I were you philadelphiafreedom