You can't sit and be depressed over your sadness
Yes, you can actually
Noone can stop you
Because you're feeling sad
But
Your problems won't solve itself
You either have to accept your fate and try to live with it
Or move on and overcome the thing that bothers you
Or try some way to solve it
It might take you years or days or nights to get through it,but you will eventually reach there.
Hold on to that little hope that keeps you going.
It will give you the strength to reach there.