Roller Coaster Emotions

Back and forth with how I feel, it's driving me crazy. One minute I'm happy next minute I'm depressed. I hate how unsure I feel about the world, how unsure I feel about myself. I want to feel at ease and not stressed out for all the crazy reasons. I want to sit comfortably and not worry about a thing. I'm scared and I feel awfully alone inside. I just want to sleep now, not worry about it for a while. It feels like life is that movie groundhog day, same thing over and over and over. I can't find what makes me happy, or what I'm passionate about. I can't seem to find my dreams for the future, I can't seem to find myself.