Try not to see everyday as just another day, but see it as another day to grow, learn, and work on your goals. Everyday should bring something new and enjoyable. Make your days something to look forward too, not something to dread.
This mentality can promote a positive, and happier state of mind. It is all about perspective, and how you take on the day. Working on your goals, learning/doing something new, and doing productive things that help you develop as a person are things that make your day a lot more exciting.