My 5 year old boy is fearful of many things. For example, he doesn't whistle, loud noices, any twist in kid movies, water and much more. He wouldn't even want to play in the public park if there are more kids playing. He's been going to daycare/school from his toddler age and gets along well with his friends in school. But always afraid of a new environment. This concerns me a lot. How to make him feel confident and bold? P.S - our family environment is healthy.