What you do is lightly draw squares with a pencil and then just color in the squares that you have drawn. This is a simple at home diy project. You decide what size you want the canvas to be then just set up your painting area wherever you want it to be.
What about Fear of water? Phobias: xenophobia definition is a bit simplistic; yes 'strangers' but also more towards the fear of foreigners. Usually, used socially and culturally than just 'strangers' but I digress.