Use the principle of Dramatic Visible Results. (This is a fun way to refer to the principle of "measurable progress", which is essential to effective change management.)
How it works:
Decide on something you want to do. Then before starting, set a goal -- one that is measurable enough that you can know when it is complete. For some projects, it may be hard to make a firm, distinct goal (some projects are that way); so if necessary, make a fuzzy goal. But make one!
Then work until you meet the goal. When you do, you will be able to see what the next goal should be, and whether you should continue that direction.
Don't start anything without such a goal. Tell a friend about the goal. Request him or her to ask you about your progress when you are together next.
If you haven't met the goal, be honest. You can explain you learned you didn't have the ability, or the interest; or your circumstances wouldn't allow you. (Sharing your goal may cause you to become more careful with your choices -- we would all rather report a success.)
When you meet the goal, tell someone. Make a badge out of aluminum foil and wear the badge, and when someone asks, explain what you did and what you will do next.
Oh yeah -- don't forget to "say no" to some other things, so you can work on the goal.
You asked "How do I get organized and on track?" That is not a related question.
As for what @TK-421 wrote, those are wise words. I think following my advice will cause you to think through all the questions TK-421 shared.