Crits are not my thing - they worry me when I watch them and I can only get excited if no-one I know is in them. I have never ridden one, and don't fore-see myself doing so.
Well done you.
Really impressed with your "what I learned list".
These are very good rules to keep in mind for most racing situations that I have been in (except for time trials). As you do more racing, and learn to 'read' others body cues and gear changes, you'll have less 'when in doubt react' and begin to know instinctively what might be about to happen.
Looking forward to hearing about more of your racing.