I realize, this may be a good place to post this too, but instead of duplicating the post, can you bass players please visit my other post here, and comment:
This MAY seem obvious, but I always like to remind P & W folks that they're NOT performing for people but WORSHIPING the Living God who created us, music, and all good things; and he "inhabits" the praise of his people! Keep an attitude of worshiping Him and enjoying the gift of music that he blessed you with(and a country that will allow you to use it!), and you'll do fine. Also keep in mind that so called "mistakes" that seem glaring to us while performing are never noticed by the people that are listening. We are our own worst critics. God will bless what you offer him with a glad heart! Go do it man!