Breakup

It’s been a year since the breakup she’s probably seeing other guys and I’ve tried to see other girls. But I can’t she’s always in my head im always thinking about her. And no I can’t go back I’ve tried she always ignores me everything about her was perfect. She had red hair then dyed it purple now it’s black. I still remember everything about our relationship. I’ve tried connecting with other women and I can’t I feel like a shell. Does anyone else relate to this? How can i get my feelings back how can I connect to someone else all over again.