I'm in a similar scenario, except I've already switched to DVORAK! I've been typing since I was very young just like you, and decided to switch, when I got a new keyboard. I had around 100 WPM average on QWERTY, and now I'm getting closer and closer to the same amount. The thing I've noticed is... Dvorak doesn't exactly make you go faster as much as it makes you more fluent. It's feels waay better using Dvorak than Qwerty. If you're really after speed, I would certainly *NOT* recommend switching over to Dvorak.

I plan to learn Stenography in the future using Plover, but for now Dvorak has just made my mind work a little bit harder.

Maybe, maybe not. Comfort will probably be the main reason to switch instead of speed. It will be a brutal month for your speed though if you decide to switch. I'm on Colemak-mod DH, I previously was around upper 90s with QWERTY, switched and went back down to something like 10wpm, but gradually sped up. Now I'm back at upper 90s/100s, and it took like a month to get to that speed.

Comfort is the main thing. Fast typing speed isn't that important to me as I'm a programmer.

If you're still a student, you should be fine with just sticking with QWERTY.

I learned Dvorak when I was in middle school. The main reason I learned it was for comfort, but I did get faster at the end as well. I currently type at around 110 wpm. For me, the comfort alone is definitely worth it though. I would rather type 80 wpm on Dvorak than 110 on qwerty even if I am slower.

I also suggest Colemak over Dvorak although I've never learned Colemak yet. The efficiency between these two are essentially the same, and Colemak has more similarity with qwerty which makes it assumably easier to convert. It also keeps shortcuts like cut copy and paste on the same position.