"أعتقد أن ألحاني أفضل من كلماتي"

Simplified Meaning:

When someone says their melodies are better than their lyrics, they mean they believe the tune or music they create is more impressive than the words or song lyrics they write. Imagine a chef who is excellent at making delicious cakes but thinks their cake decorations aren't as good. They feel people enjoy the taste more than how it looks. In music, this person might be really good at creating catchy tunes that people like to hum or sing along with, but they feel the words they add to those tunes aren't as strong or meaningful. You can think of it like how some people are great dancers but might not be good at expressing their thoughts with words. To use this idea in your life, you can focus on what you are best at and not worry too much about being perfect in every way. For example, if you are great at drawing but not at writing stories, you can draw more and maybe team up with someone who writes well. This way, both your strengths complement each other.