What you're going through right now is a process. How you're feeling is entirely valid. Ignore people who tell you to "suck it up" or "move on", because you can take as much time as you want to. Breathe. This is all a process. People will change and so will you. Let them change. Let yourself change.
Life is a cycle. Ignore those who tell you that "life goes on". I'm 17 years old and if there's one thing i have learnt is that there is a hell lot of more to it that three simple words. Sometimes life doesn't go on , sometimes it just stops. And you feel like it'll always be the same.You feel like you''ll never be the same again. You know, sometimes in summer when it is too hot, you forget how it feels like when it's cold. Or in winter, it is too cold outside, you forget how it feels like when the weather was hot. But it does get better after summer. And we get summer after winter. Life is the same. Life is a cycle. You may feel like things will never get better, but they will. There will be sun again. It'll snow again. It can't be summer throughout the year. It can't snow every day.
This is all a process, sweetie.
Breathe. Take it all in. Let it happen.
Things will get better.