Rewire Your Brain...
Your brain will constantly rewire itself to suit the information that you feed into it.
If you constantly complain, gossip, find excuses, etc., it will make it much easier to find things to be upset about, regardless of what is happening around you.
Likewise, if you constantly search for opportunities, abundance, love, and things to be grateful for, it will make it much easier to find a reflection of those things around you. It takes practice, but over time, this is a very powerful way to reshape your reality.