"I am not a very good reader.... Am I really the best person to read to my child?"
You are your child's first and most important teacher. Don't ever forget that. Most children's pictures books are written between a 3rd and 5th grade level. You do not need to read all of the words, There are 2 stories; one from the author and one from the illustrator. Read the pictures to your child. Make-up your own names from the characters. Have them do some actions on each page. Give your story a beginning, middle, and an end. They are benefiting from your reading. Your child will not even know that you are not reading the words.