There are many ways one may think of prayer and worship, and one should feel encouraged in revamping them a little if it means one may serve better ones daily practices or routines. Singing God's praises isn't just for in Church time, it is wherever, whenever.

It can be your own song or one you've committed to heart, it doesn't particularly matter; God doesn't think of it as a singing competition. What is important is ones intent, ones heart, ones willingness to rejoice! If singing is really not your thing, the definition could be widened; write a poem of praise or do a dance, whatever it is, it's the joy in celebrating our Lord that counts.