Dear Little Sister,
I know this sucks. Heartbreak is hard. Your first relationship lasted much longer than mine did, so I can only imagine how much more it hurts right now. I get it. But, you aren't alone in what you're feeling. So, here is my best advice for you.
Your feelings are completely valid
It does not matter if you broke up with him, or if you're still young, or anything anyone else wants to say. Your feelings are valid because they are what you are feeling. No one has the right to tell you what to feel—you have a right to feel your feelings fully.
Keep your chin up
You are a complete person all on your own—you don't need no man! You are great the way you are, and strong enough to get through it all.
This relationship didn't work out? That's OK! You're that much closer to finding the one that will. Mom's right—this just teaches you more of what you do or don't want in a relationship.
Don't jump into another relationship right away
I know you're used to having someone there, and the company and support are great. But don't let someone you care about become a rebound. If they really care about you, they'll wait until you're sure of yourself again. You deserve time to yourself.
You're going to learn who your real friends are—lean on them.
If your friends feel the need to pick sides over your relationship ending, they probably weren't really your friends to start with. Your friend circle is going to shrink a little, but that's OK. It's best to know who is there for you now. And while you're leaning on your friends, don't forget you can lean on your family. I know when you're 15 it can be hard to relate to your parents, but I promise you they care about you.
If you want to chill with Ben & Jerry for a while, that's cool
Puns completely intended. But, go ahead and eat the ice cream (there's no reason not to). You deserve it.
Do not forget your worth
You are beautiful and smart and kind. You deserve the best. Live your best life, my dear.
I know I don't have all the answers, but I hope this helps. I am always here for you.
I love you,
Your big sister