Is God Selfish?

So, here's the thing. God is the big being, who has power over death itself, he's created the heavens, stars, the universe. He wants everyone to be outward focused, focused on pleasing him. Wait. He wants me to be focused on pleasing him? Does that make God selfish? But the Bible says God is without sin, but he wants everything to be about him? I don't get that.

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Galatians 5:16-6:6

So I say, live by the Spirit, and you will not gratify the desires of the sinful nature. For the sinful nature desires what is contrary to the Spirit, and the Spirit what is contrary to the sinful nature. They are in conflict with each other, so that you do not do what you want. But if you are led by the Spirit, you are not under law.

The acts of the sinful nature are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God.

But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness and self-control. Against such things there is no law. Those who belong to Christ Jesus have crucified the sinful nature with its passions and desires. Since we live by the Spirit, let us keep in step with the Spirit. Let us not become conceited, provoking and envying each other.

Brothers, if someone is caught in a sin, you who are spiritual should restore him gently. But watch yourself, or you also may be tempted. Carry each other's burdens, and in this way you will fulfill the law of Christ. If anyone thinks he is something when he is nothing, he deceives himself. Each one should test his own actions. Then he can take pride in himself, without comparing himself to somebody else, for each one should carry his own load.

Anyone who receives instruction in the word must share all good things with his instructor.
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I don't know, but it kind of looks like God is a tad bit selfish, wanting everyone to worship him. God calls us to imitate him, too, so I don't get it. I used to get it, but I don't anymore.