Perhaps the practical reason to be grateful is this: when you are grateful, you are more empowered. You realize that you actually have more options than you think you do.
Also, when you count your blessings, it gives you a sense of strength. You count up your possessions and your blessings, and your advantages, and you realize, I got this.
Also, it expands your mind and yourself. For example, if you count all the blessings of all the possessions you have, and the lifestyle you currently have, it allows you to move onto better stuff. Like focusing on your artwork, your creative work, and thinking higher and loftier turbo thoughts.