Understanding without action is like a tire without air-you have a floppy,shapeless vessel that is pretty useless in going anywhere and an action without understanding is the air with nothing to do but float aimlessly. So DO something even if the understanding is not clear.
You may "fail" but that is when learning occurs and understanding can become more clear. In other words keep your tires filled with the proper air pressure and you can go far!
As we DO though, be mindful of 2 other priorities....patience and faith.
Work hard and smart- be responsible- and realize "Rome wasn't built in a day". It has taken a lifetime to get to where we are. It will take a lifetime to get to where we think we need to be. The path may not always be straight nor will it be easy (if it was everyone would be on it?) and please understand good things take time.
Have faith in yourself-know you can-and believe in your higher power. My higher power is God. I know when I stumble (and trust me, I "stumble" a lot) I will get back up because I know I can and I also know God is always there to support me.
With understanding, doing, patience and faith many great things can and will happen.
YOU ARE THE DIFFERENCE!!!