Same, the first time I ever had a cup of coffee I missed two nights sleep.
I have only done 23andme not a WGS like you, but I have at least one liver enzyme SNP that dramatically slows down caffeine metabolism. It took me quite a while to realize that the advice of "no caffeine after 5pm" or whatever needed to be something more like - no more than one cup of coffee before dawn.
Yeah, it would be nice if these general life rules / advice could be written down somewhere with the exceptions listed. I would have appreciated getting a personalized handbook that would have given me a heads up that I was different. Given the price of WGS being low enough to be generally available I think this is something humanity could benefit a lot more from.
That concept is so broad and generally useful it can only be broadly represented by something like Timothy Leary's statement of "think for yourself, and question authority."
Of course, knowing for sure specific facts showing that you are different in some way such that general advice doesn't apply is super useful because it saves you the effort of having to solve the problem on your own- you will always find new ones that nobody has already solved.
I have only done 23andme not a WGS like you, but I have at least one liver enzyme SNP that dramatically slows down caffeine metabolism. It took me quite a while to realize that the advice of "no caffeine after 5pm" or whatever needed to be something more like - no more than one cup of coffee before dawn.