Without any need for reason or justification, you will find that there is no one in this world or any other that you cannot overcome, for your raw ability scales seamlessly to match and just then just barely overcome any opposition you face in all your endeavors. If you would kill a man where he stood, your strength and cunning would best him. If you would take a lover for your own, you could chase them down to the ends of the earth and subjugate them beneath your body. If all humanity were to turn against you and deny you your right to do as you please, you could dance between the rain of all their weapons and prove your supremacy by force. If dragons would keep you from the treasures you seek, you could rip them from their hoards and cleave their skulls in twain, and if the very gods themselves would name you as their enemy, you could hurl them screaming from their thrones and force them into submission.
Though naturally limitless in every respect that matters, your puissance is best expressed through paths of least resistance: you'll find that those capabilities you already possess are always infinitely quicker to expand in scope, scale, and potency than any entirely new abilities are to appear at hand. Likewise, you'll far more readily find raw ability and talent within yourself than you'll find cultivated skill. If you were to challenge a king of games to a game of chess for his throne, you would sooner find the sheer genius you needed to outwit him than discover the specialized professional understanding of a chess grandmaster, let alone the blessings of a god of the chessboard.
As this ability gives you exactly what you need and no more at every turn, you will never lack for a challenge by this power alone: the limitless power you find within you when you exceed your grasp and your limits are tested will never sully or obsolete the simple pleasures of overcoming the mundane, and you will never be bored by the battles you might face. Similarly, though you may find the strength within you to wrest stars in twain, it is only an extension of your own will to power, and thus will never overflow beyond your ability to control; you will never face a "world of cardboard' except insofar as you actually want to rip it all to shreds in your hands. And on the flip side, you can also never be surprised (and thus overwhelmed) by any factors you would choose to struggle against if you knew of them, for your will cannot be so easily overcome. If unseen enemies were to conspire to assassinate you, you would find it in yourself to dodge the killing bullet or purge the lethal dose from your flesh.
Finally, whatever form of pleasure, satisfaction, and happiness you take in your victories, you may freely share at your discretion with those you have overcome. Whether this is merely another form of violence you're capable of inflicting upon others, a guilty pleasure you needn't deny your unwilling subjects the opportunity to experience, or a final self-demonstrating proof of the ecstatic rightness of your rule, is up to you.