"Worrying is stupid. It's like walking around with an umbrella waiting for it to rain." - Wiz Khalifa -- now I worry a hella lot but this quote still makes a lot of sense. not gonna be able to stop me worrying though
One of the keys to success is passion. If you care about something or want it naturally you won't need to force yourself to work on it. The passion will be your fuel. Only work on things you are passionate about.