If I reclass for 68X, how likely would it be to get a class date? Would it even be worth it?

You're not eligible due to your rank. It's not something you can waive. You would need to contact the MOS propenent to ask for a grade waiver. That's a very low likelihood of acceptance, especially in a low density MOS. Second, you're in an understrength MOS requesting to go to a balanced MOS. That would require an exception to policy. If you have a bachelor or masters in counseling, that could be viewed as worth an exception. An associate in psychology or a few psych classes probably would not. Basically, you need to be exceptional enough that it would be advantageous to the Army to break its policy. For instance, we had a soldier with a master in a certain degree field. HRC tried to get her into the MOS she asked for, but there were no class seats. Which brings up the third issue - you would still need to manage to get a class seat. Very small MOS, very small class seat. I don't remember any requirements for LORs as someone else said, and I'm certain this MOS doesn't require any college courses, but other medical MOSs do.

You will need 3 LORs from your commander, battalion commander, and an o-3 or higher in the medical field. There are also prerequisites that you need to go in some certain ones I.e. Algebra classes and such. Class dates are small for some of the specialty MOS’s so sometimes they’re hard to get. Also, the medical field only accepts SPC non promotables so you’ll have to submit a waiver to be pulled into the medical field.