My heart aches physically for someone who doesn't even think about me how do I help myself ?

Remember that you dont need anybodies validation to be amazing. Base how you feel off of you, not off of somebody else.

Wanting someone who doesn't want you is honestly the worst. There's no shame at all in being upset over someone that doesn't feel the same, and you should never beat yourself up over it. It's normal! When I went through my first breakup I was still so in love with him, I thought I'd never get over the guy. He broke up with me because after five months together, he just didn't feel the same anymore. It was really hard to get over him, but I made it through it because I let myself cry and be upset and feel what I needed to feel. Don't push it down, take care of yourself and don't feel bad for being upset about someone you never even dated! The sooner you embrace your emotions and let yourself heal, the sooner you'll realize that you will be okay and it'll pass. There are so many good people out there, you got this!

Your feelings are valid. They are real and very normal. It can hurt a lot when the person you want doesn't want you back or acknowledge you in the way you desire them to. But as cliche as it sounds, time (and space away from the person, if possible) will heal your heart. It may not be easy at first, but you will pull through. Find healthy ways to distract yourself - find a new hobby, discover new fulfilling things/projects - and in the process you might just find yourself loving yourself more that you thought capable, and even enough to let go of the one(s) you once wanted. I'm rooting for you!

Heartache is something we all experience when we like someone, it can be a crush when you are a kid to meeting the one you marry. We also wish to be seen by someone else to know that we could be admired from a far, it's only natural. And just because you don't think they know you exist, doesn't mean they don't. I guess to help yourself, you can sit down and determine yourself what you'd like to have with this person, and maybe initiate a point of contact. Get to know this person, learn if you're compatible, worst case is they aren't what you want and you no longer spend your time wondering if there is a chance. You could even make a new friend.

I know this can be one of the worst feeling in the world... But the only way to help yourself is by slowly moving on. This process isn't easy, but in the end it's rewarding. You might have days where you feel defeated and other days where you feel like you have forgotten about them and that you are on the top of the world. The best thing to do, is to just embrace those feelings and keep moving forward. Personally, I blocked that person out of my life and even though it made my heart ache, my heart feels lighter and free. It was tough don't get me wrong, but now I am slowly starting to feel okay and I hope you feel better too.