We grow up with such an idealistic view on how our life should be; love, friendships, a career or even the place we will live ~ only to age and realise none of it is what you expected & reality is a little disheartening, when you've reached that realisation; you have learnt the gift of all, any new beginning can start now and if you want anything bad enough you'll find the courage to pursue it with all you have. The past doesn't have to be the future, stop making it so.
It hurts to let go, to say goodbye for the final time and remain distant in your closure, it may even tear your heart out to the point of insanity; but somehow in it all you find the pieces of your worth and you start creating yourself again, and in that journey of transformation you find the essence of what truly matters, inner happiness. It's life, we all fall at some stage but it's up to you, to decide how long you want to stay there.