I am going for my doctorate in psychology, with a minor in communicative disorders (autism, etc).
To be honest, I chose this field because in the things I want to do, such things are not often an issue.
If you have severe issues in such areas, a behavioral therapist would be helpful to an extent. You can teach yourself some phrases and responses for typical situations.
I know how you feel...it is daunting. All you can do is your best. That is where deciding about disclosure comes in. If they have an understanding that you have different needs and issues, it could clear up some problems.
Let me know if you have more questions...
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"All that we see or seem is but a dream within a dream."