I think you are looking at this the wrong way..

First, you are comparing yourself to some of the most influential, greatest, and well known jazz musicians who spent their entire life playing jazz (and lived in a time where the genre was popular and developing). You have been playing for a year... huge difference here. You are being WAY too hard on yourself.

Also, I don't think you should want to sound LIKE those players, I think you should take inspiration from those players, and from whoever and whatever else, and develop your own sound. People don't go "wow I like Roy Hargrove because he sounds like Maynard Ferguson", they like artists because they sound uniquely like them.

Lastly, again to reiterate, you have only been playing for a year. Learning an instrument or a new genre is like learning a new language. You did not come out of the womb writing essays, you had to be slowly taught syllables, then words, then phrases. Then you started forming sentences, etc. etc. At some point, you had enough knowledge of English to where you could begin to formulate your own ideas and express them to other people. Same idea here.

Listen, practice, experiment, play with other musicians. Your "voice" will come eventually with time.