If I am trying to convey to someone that I still have much to learn. The first thought that came to my mind was
But I am unsure if the 要...了 structure is necessary. Without it the sentence literally means "I still have a lot of learning" or am I am I reading that too literally? Also 要...了 more closely means "about to happen" so that makes the sentence more closely resemble "I still have a lot I'm about to learn" and that also sounds a bit silly. Is there a different grammar structure that would be more appropriate here or am I going about this all wrong?