How do you get a good attitude?

By doing things that make you happy. In most cases, people listen to their favourite artists, play their instruments or play sports.

Also, you can get a good attitude by having a positive outlook on life. Instead of getting upset and down when things go wrong you can think to yourself, "I'm glad that I could learn from this experience. I won't do the same thing again". And most of all, don't give up. Even when life gets tough, keep going forward.