How long will it take me to get over her completely? Will that day ever come?

I'm 20, she's 21. We dated for 2 years , about a year ago it ended. Haven't seen her since August. I miss her every single day.

Will there ever be a day when I'm actually over it? I've done everything that everybody says after a rough break-up, none of it helps at all. Is time the only thing that will save me one day?