Ensure that everything you enjoy doing, gives you satisfaction and makes you happy. I used the word singing to display many other terms that could give you a lot of happiness. It could be any word, as long as it makes you happy. For example pleasure, cheerful, amused, joy, lovely, jolly, amazing and many others.
Singing itself is fun and it doesn`t only make you happy, but it also makes you healthier. Just do what your hearth desires and don`t worry whether other people do like it or not. As long as it gives you a good feeling!