To accomplish what you want you have to direct of the means at your disposal to where you want to go.
Your sphere of influence lessens the further you move out from you. The centre.
And by reverse thinking, your sphere of influence is greatest at you, the centre point.
To accomplish what you want focus on you, first. The biggest lever with the most return. Then consider every one and every thing else.
It all starts with you, and surprisingly often ends there.