Is this love? Or am I just stupid?

You're not stupid you're in love and it's time for you to make a decision for your life. It really is time to let go of me maybe or someday or somehow. You have to choose: either you want her back in your life (since you've been trying to become better for her which is great) or just forget about it. If you choose to forget about her, then you really have to stop comparing whoever you meet and just let go of the past. If you choose to ger her back into your life you better do it fast. Since she feels the same way and since you've made things better, I think you should give yourself another chance. I think there's still hope. But if you don't think it'll happen, then just try to let go and go on. You'll find someone to love if you let go of your past. It's your life and you build it. So do things the way you think it's best for you.