"How can I let go of the hope of wanting to give us a second chance?
... I want myself to be happy. I'm just not sure where to go from here."
Focus on being happy. That's your next, and only step.
The only reason anyone wants anything is because they believe they will feel better in the having of it. So, you want to let go of your belief that you need him in your life in order for you to feel happy and fulfilled.
You want to focus on unconditional happiness and unconditional alignment.
By aligning myself with happiness, love and excitement, if we're supposed to try again, that will inevitably attract him back into my life, right?
No, because he has free will and he has his own desires, and he has his own alignment (which might match yours or not). But you will attract him or someone else, who will be perfect match to your vibration at the time.
"By aligning myself with happiness, love and excitement, if we're supposed to try again, that will inevitably attract him back into my life, right?"
Yes, or someone else who is a vibrational match to what you want will be attracted to you.
You just want to release the need that it needs to be this specific person, and no other man will do, which it seems like you're close to.
Any any point, there are always at least 20 - 30 wonderful, beautiful men available to come into your life, so be open to whomever fits the vibrational bill.
I also joined this site 4 years ago because I wanted to attract my ex back. I never attracted him back, but I did attract the boyfriend I had since him back. Now, neither of these relationships worked in the end.
Please keep in mind that it IS possible to attract your ex back. What you want, wants you according to Abraham Hicks. But it does not mean that the relationship will work. Keep that in mind.
This is not meant to discourage you, but the opposite. Know that if you want a second chance with someone, it is possible. But it takes as everyone here is saying, being happy on your own, and for me what's important in manifesting anything, is accepting the worst case scenario. Make peace with the worst case scenario, secure in knowing you will be okay even if that is to happen, and this is the first step (at least my first step) in letting go.
This also allows you to get general. Trust that you will attract this man or someone even better for you, you just need to focus on yourself and your own happiness first.
I also joined this site a couple of years back, desperate to attract my ex back, and fix my messy love life in general. Instead I found a loving community that helps me in all sorts of areas and because of this very site I feel happier than ever.
I did manage to attract my ex back but only after two years and it was during a period that I was really feeling uplifted, I only acted spontaneously and I didn't even care about getting back together with him any more. Actually, when we first contacted each other a few months ago I was seeing someone else and had no romantic feeling towards my ex anymore! Anyway a couple of months passed, I stopped seeing the other person for a number of reasons, but my ex and I still had friendly regular communication. One thing lead to another and we got back together for a short while and eventually we broke up again. And during those two years of separation I have dated other people, broken up with them, and always attracted them back when I least cared!
I know that my story is not the most inspirational but I did manage to attract my ex, and I don't even believe we are soulmates to begin with, so it worked out for the best :)
But what I get from your story is that you haven't really let go of him yet. It's a good sign that you feel good things when you think about him, it shows that you have done a lot of effort! But how do you feel about you? Take him out of the picture for a second and think, are you happy? Are you happy about yourself, your life, your family, friends, etc? Have you made an effort to move on and date a few people ever since you broke up?
Gratitude is a major part of manifestation, but it's not enough. Don't sit around waiting for him to be single again. Decide from this moment on that you are going to be happy with or without him. That doesn't mean that you lose hope, it means that you open yourself up to the endless possibilities that life brings you to be happy. He is one of the possibilities and if it's meant to happen it will happen!