Read this post from Seth Godin. I found it profound and enlightening, even outside of the marketing paradigm that Seth talks about in.
http://sethgodin.typepad.com/seths_blog/2015/01/your-mood-vs-your-reality.html
In fact, this is completely in line with “The Secret”, another book that I’d recommend a read. I’ve never managed to read it through so far, though.
http://finishonethingtoday.com
As simple as that. Go finish one thing today.