How to finally move on and be happy?

So me and my ex wife have been divorced around a year and moving on has been hard to say the least.
while the relationship was not stable, we shared many happy moments together but it came to its end. We have had a small amount of contact since and tried talking things through but decided it is not meant to be.

I have tried dating since and all I have learned is that it has lead to me rejecting some fantastic people as I was not over the marriage deep down.

I have made many positive changes to my life since and to the outside person, it seems like I have many things going for me (the motivation behind every change has been the thought of my ex wife)

There is absolutely no chance of us reconciling which we did discuss not long ago.

I would describe my feelings as I can’t live with her but can’t live without her (we did try living at separate addresses but that did not work either)

Does anyone have any advice as it seems to be that any progress that I have made, has always had her connected to it and I can’t appreciate the life I have built?

There has only been one person since who I would say I have loved but she is in a relationship and we are close friends (I’m not the sort to ruin a relationship for my own feelings)

Thanks
How to finally move on and be happy?
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