PsychCentral: Social Anxiety/Social Phobia
Anxiety Forum
I'm glad your symptoms have in general become better since leaving the service. You may find that your anxiety will continue to dissipate. Self-help/self-practice may be the thing for you. If you would like some assistance, your college has a counseling center, yes? Might they be a resource for you?
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My dog

mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.