I would definitely suggest a stronger reed. You can get some high notes out with a strength 2 reed but they probably won't sound too good and you will squeak a lot. I would suggest at least a 2 and a half but eventually you will have to go to a strength 3 reed to really get a good sound out of the high notes.

High notes require a lot of air from the stomach so just make sure you support those notes. Try to tighten up your lips when you play a high note so you don't squeak/go flat. Make sure you constantly keep your instrument warm as you practice so your notes don't sound dry or airy.

Well i obviously said the clarinet hurts your tounge

Kinda sounds like you said keyboard hurts your tongue.

Professional percussionist here

I play guitar (acoustic and electric) and bass (pls no hate)

LOL

I've been learning the piano for 6-7 years.
Also, I played the saxophone in Instrumental lessons.
Technically, I know how to play the:
Voice (why not), clarinet, trumpet, recorder, flute, guitar, cello

Adding onto this, as with any wind instrument, don't use your 'chest' air or use your throat to push out air. You'll only strain it and possibly damage it.