I think you put it in your mind that you are not going to be able to let go and move on, this is what you have come to expect from yourself before it even happens. When you "try" to let go you are leaving room for failure......why not say? I AM moving on, I AM letting go and do just that
You will get through it trust me, its not all about time but what you do with that time, try to keep yourself occupied and its ok and makes sense to hurt or think about the past but try not to let it consume you.
It takes time. It feels like you're not going anywhere, but you need patience.
they weren't loved or had very little so it's not a big loss of letting go to some.