I'm rather hesitant on this. I'm the same as you; I want to do at the very least commentaries. However, a good part of commentaries/let's plays are how you sound. Does your voice sound deep? If yes, you should be able to do it without getting negative responses. If it's high-pitched, however, I suggest you wait another year or two and then do it.
You could catch a lot of flack for a higher pitched voice (If you still have one). Commentaries have a lot to do with your charisma, though. If you can grab peoples attention with wit and humor then you should be golden.
Sorry, but first off this isn't the type of section to post this kind of thread in. I don't think there is a section at all that could house this kind of thread. Secondly, you don't have to ask permission to make anything. Just go do it and see how it goes.
Anyway though, wrong section so
"I am confident that if anyone actually penetrates our facades, even the most perceptive would still be fundamentally unprepared for the truth of House Dimir."