The mirror

I've always had a plan, but due to some setbacks in life I had to let go of my plans. Now 5 years later after giving up what I really wanted I've found myself lost. The last couple of weeks has been a roller coaster ride of emotions. I feel drained. When I look in the mirror I don't see me any more, but someone who is older and just gave up. I'm lost and I don't know how to find my way back. I want to look in the mirror and be happy with myself. How can I find myself again?