We all have experienced pleasure. We all have experienced happiness as well. Have they ever been sufficient and final? Never.
Therefore, if you love yourself, then it is not pleasure or happiness or gratification that you would want to provide yourself. You have to ask: “What is it that I really want? What is it that would provide me a deep and very long-lasting contentment? What is it that would elevate me from the level of desires for the futile? That is what I would want to gift myself.” And that is called self-love: gifting oneself the highest possible.
Beware of false self-love. Being indifferent to the self is far better than fake self-love. If you do not know what to give to yourself, at least abstain from giving all the toxic and harmful stuff to yourself.