It can be really hard. I wouldn't recommend seeing new women yet, if you still love your ex you'll hurt them and yourself. These things take a lot of time, and are not easy, but the pain will ease. Use this time for yourself, try to find joy or at least calm in other things. Fill that hole with something that will not leave, and someday you'll be prepared to love again.

You don't need to forget her. You don't need to forget what you felt and what you learned and all the good things that she brought to your life. You just have to value all of that and think of it as a good memory. This is experience. I'm sure that all the time you were together has helped to shape who you are today, but many people has also done that, in different ways, and will do that, and the world will keep spinning and you will still breathe. I know all of this will sound like nonsensical shit to you in this moment, but as i said, these things take time.

Now grieve, allow yourself to be sad, and once the pain is more bearable, once you get used to be alone again, you'll see this moment of your life as an experience. Don't worry if there will be another woman you love so deeply, as long as you have the energy to do it, try.