The easiest way to follow through with your intention to feel good is to look for things to appreciate.
All day, notice and tell yourself how much you appreciate.....The weather, the smoothly moving traffic, a smiling face, a friendly exchange, a discount, a funny comment on the radio, a great song, a beautiful building, a good parking spot (or a nice walk), your healthy body, the efficient, clean elevators, the cleaners who worked last night, another smiling face, your work skills, others' skills, a delicious lunch, the light fixtures, the view out the window, an easy solution, your comfy chair, the efficiency of a transaction, a new idea, cell phones, Facebook, a fun conversation with a friend, your car, your ability to focus, your house, your kids, your mate, your pet, your dinner, a funny TV show, your pillow...
That simple, intentional directing of your thoughts will tap you in to who you really are. Who you really are is a loving, appreciative, fully-present person who radiates good will.
It will make you feel good. It will condition you to look at life differently. As you enjoy how it feels to feel good, more and more things to appreciate will show up in your life.