Ok. Well, for starters:
1. The Glissando: Unless you use a really soft read and compromise tonal quality in your playing...it`s almost impossible to even attempt to gliss over the break in the throat G, G#, A, A#. My suggestion is to complete the gliss like in Rhapsody in Blue...just peel your fingers off the clarinet slowly from 4th line D up. To reach the F#....as you finish sliding up to the C...Slide your thumb off of its tone hole...then slowly add the Ab side key, A Key, A#/Bb Side Trill Key (right side trill keys...third one up from the bottom), then the False B Key which is the one at top...that will be F#...but you have to use a regular fingering for F3 to trill to G or G# (I don`t know what key you`re playing in).
2. F# to G trill -
a. Reg. Key, LH Thumb, LH Middle, (RH Pointer), (RH Middle), Eb key
b. This will take forever to explain - so: Finger Third Space C# and add your LH Pinky on the C#/G# key. That`s F# and then trill the LH Pointer, LH Middle, and LH Ring. Sometimes it`s more in tune if you trill the C#/G# key also.
3. F# to G# trill - (really sucks)
I can`t find one to do it totally in tune so we improvise.
a. Reg. Key, LH Thumb, (LH Pointer), (LH Middle), RH False B Side Trill key on top, Eb key. This really is just a few cents sharper than a G. Enough to make it sound ok when using it very fast.
b. Reg. Key, LH Thumb, LH Middle, (LH Ring), (RH Middle), Eb Key. Very tempermental. You have to have a very tight embochure to get the G# to come out.
4. A to Bb Trill -
a. Reg. Key, LH Thumb, LH Middle, (LH Ring), RH Pinky on C# Key. Notice the C# Key. It`s not the Eb key.
b. That one was easy enough I hope!
5. A to B Trill -
Reg. Key, LH Thumb, (LH Pointer on A key), LH Middle, LH Ring, (RH Pointer), (RH Middle), RH Pinky on C# Key.
Keep in mind that all of the keys in ( ) are the ones you trill with. Also, since you will be entering into college next year - I would definitely advise you of learning your chromatic scale up to C7. Check out the following website for fingerings. It gives you all sorts of fingerings for altissimo range notes.
http://www.wfg.woodwind.org/clarinet/
It also has Multiphonic notes, Trills for all sorts of notes, etc. Enjoy!
-Dennis