Peace be upon you
I do agree with Malika; if you love her just try to do something good: try to study and work hard, to get a good situation... only in this way you can ask her to marry you, show her that you love her indeed.. but I you continue drowning in her love, imagination, and regret, you will do nothing but fail in your studies or job and your life in general.. believe me brother love is just a thing we build with our own imagination; we imagine that life is impossible without that person, but in fact love is something we can find everywhere, we just need to be sincere; where there's virtue there's love.. wish you all the best my brother