It's been about a year since I broke up with my Ex...should I get help, take more time, try again or what?

I had a great relationship with this girl last year, we were very happy then in a short space of time things went quickly down hill and we mutually agreed to "take a break" (which I know know is a bulls**t phrase) I tried not long after we did this to fix things but I never said the right things and nothing happened so I gave up and started a long cycle of depression. we weren't very good with each other for a long time after that (like 9 months) the rescently we have started to be more friendly with each other but nothing special. I've tried just to move on but I find it exceptionally difficult for the most part we were really happy and (although I think the phrase is a tad cringy) were really in love, I cared about her a lot and still do. I can't deny that I still think about her and want her back, I've found finding someone else really difficult I only really want her back but fear that if I tried I'd look like an obsessive freak. I really don't know what to do, is it normal to be this obsessive about your ex long after you split up? I'd really appreciate some advice.