Since you're aiming for such great things, remember this: you can't have even the slightest desire for other pursuits. You must completely give up some of them. Put the rest on hold for now. If you try to have both — these great things AND power and wealth — you'll likely lose the power and wealth while chasing the great things. And you'll definitely fail to get what actually brings happiness and freedom.
Aiming, therefore, at such great things, remember that you must not allow yourself any inclination, however slight, toward the attainment of the others; but that you must entirely quit some of them, and for the present postpone the rest. But if you would have these, and possess power and wealth likewise, you may miss the latter in seeking the former; and you will certainly fail of that by which alone happiness and freedom are procured.