Pick just three things that possess the potential to change your life (and the lives of others) in a very positive way.
Don't ponder the question too long because they're not hidden. You probably already know them. Make sure that you word the description in a manner that will allow you to measure progress every day.
Write them on an index card and carry it around.
Do the three things every day.
Every day. No exceptions. [If an emergency intervenes, get back on track as soon as possible. Abandonment is not an option.]
Monitor your progress every month. If one goal is achieved at any time, put in a new one but stick with a maximum of three.
See where you are in six months.
Let's talk about this in a year. Put that on your calendar. I'll put it on mine.