We have the power to change

For what a person thinks is too big for him is actually bigger than his mind but not his potential.

If the steadfastness of the heart is also in the mind than this is the real meaning of change. The human attribute to desire beyond all imagination is enough evidence to see why humans have power to change times and seasons,
take for example, WW1 and WW2, they all started somewhere, obviously someone had more they wanted to stomach than power.

SO go build your dreams and keep focused on them always. besides its worth trying and nothing.