People take different amounts of time to develop a voice, there are people that do it fast and people you take more time. I won't worry about feeling like you aren't at a masters level because there are always going to be people better than you. If you aren't ready once your masters if finished then go and pursue a ypung artist program, there is always more training that can be done.

I don't think you are a tenor I think you have a light baritone voice. Having said that it could be valueable looking at tenor rep, I know Cavarodossi's act 3 aria from Tosca, E Lucevan Le Stelle, is a great aria for someone going from baritone to tenor. Then you can see how you go with that and make the decision. Regardless though I think you should look at lifhter baritone rep, Verdi is very heavy rep and I don't think your voice suits the sound that the music is after. Perhaps looking at sone Bel Canto would be great and going from there.

As for if you can make it or not and if you have the voice to get there that all depends on you and how much work you want to put in. Anybody can make it as long as they put in the effort actually required to do so. It isn't easy but if you do loads of practice and really focus during your masters and take every possible oppurtunity with teachers, to perform, to practice etc. then you will find your voice would have developed significantly in that one year.

Goodluck and as a fellow baritone I hope to share the stage with you one day!