check out that PM
its funny you mention you are nervous around authority figures because thats the exception, usually its with people such as peers, relatives coming to visit your house, etc, etc. For example for a lot of people interviews and speaking to officers are okay, its the situations where they have dinner with somebody privately, or just hanging out with friends, that gets to them because they feel as if theyre thrown on a stage and have to perform, or be criticized constantly for every imaginable actions, actions become mechanical, feeling overwhelmed out of control, sweating, deathly need to escape situation, etc. And afterwards when more relaxed you reflect back on it, dwelling on it piece by piece(overanalyzing), which makes it worse the next time. Cycle repeats