how to move on..

I’ve been thinking about my ex a lot lately..honestly, I haven’t stopped thinking about her since we broke up and it’s only been a month..we communicated maybe for a week a couple of weeks after we broke up but now we are once again not on any type of speaking terms..I honestly think she may be the love of my life, I’d do anything for her still to this day. I think she’s moved on and I know it’s the best thing for me to do too but it’s easier said than done and I just can’t seem to shake this feeling. I’m doing nothing but holding my own self back. Please, I need advice.