@satodiya I think this should not be called 'hate', but realisation of what a ugly place actually was, what toxic, twisted groups of people they are, and it's definitely healthier to leave them behind and never look back, and to start over, you're doing fine mate
just remember to also fill your memories with all the good new things in your life right now, it's no bitterness if you have cut clean and stop acting like those people back in the old place
Sail well out there, be free!