Every emotion is in your head only, so that's not useful advise. The same argument could be made for virtually every form of social insecurity.
If I may ask -- you are the same registered user who made the initial comment. Why reply to yourself? Are you multiple people using the same account?
I'm the same username2 you are responding to, but not the OP. Some emotions are "in your head" in the sense of being due to chemical and hormonal imbalances which you have limited non-pharmacological control over. Others are "in your head" in the sense that it is just neural software you were born with, but can be rewritten. Embarrassment is the latter.
If it's worth saying, but not worth its own post, then it goes here.
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2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should start on Monday, and end on Sunday.
4. Unflag the two options "Notify me of new top level comments on this article" and "