A tip on how to jump higher: Take one or two preliminary steps before jumping. The energy developed in those steps can help generate additional upward momentum. WikiHow
The same can be said for following your dreams in life.. We are in training for what we want in life.. everything you do leading up to accomplishing anything is the exercising and strengthening process that gets you to where you want to go / be.
You are building your strength, creating flexibility, and getting into position for what you want. And when you are trained and ready.. you have the explosiveness to make whatever it is you want happen.
Have a great day!