Doubts

On July 2nd there was a Gathering at a lovely church in Milwaukee where a group of us got together to praise. There was prayer and song and dance. Our choir participated and we sang and honored the Lord with everyone. It was very moving.
There is a problem though...I am not sure if I belonged there. I am very insecure in my value to my faith. I have long questioned my motives. Am I good to look good to others or to please God?
If I lift a situation in prayer, is it to truly turn it over to God or to find some scapegoat in case things go horribly wrong...or is it that I figure if God helps, the result will be better for ME?
I am filled with doubt and questions about my motives. If you are good because you don't want to be bad, are you bad for not seeing the source of good? If you praise with your heart and soul and then someone commends you for it, are you ok to be thankful and appreciative of the compliment?
What happens when you do a good job and forget to say it was God who helped you through? Does a good deed lose it's meaning when you tell someone you did it? If you help an old lady at the grocery store and brag about it, does the act become almost sinful as a result of the bragging? If you approach a situation as a chance to be good in the eyes of God, does that make it less spontaneous and more self serving? Do I get to heaven because I did things that I knew would please God or did things that truly pleased God?
Am I a good person? I don't know.