We always have to appreciate what we have and who we are.
If you do not appreciate what you have you are going to look for something bigger.

But if you appreciate it, you finally understand the real value of what you already have.

Appreciate what you have and keep your focus on your future. 
What are you going to do in your life? it is up to you! 
At the end of the story, it is always up to you. 

You can't blame the past anymore, and you can't wish to become another person. It is you against you. The winner is the person you want to become.