Exactly. You made analyze, you calculated bet size and risks. Why you want to destroy it all, because you see something strange in the game? Just follow your strategy and relax. It always would be better to get what you planned, than to lose more, or cash out and watch how you first bet wins. Anyway, you will be calm because you analyzed and calculated that bet before.
While what you are saying could actually be true, i still see nothing wrong with making adjestments and necessary modifications in your bet. simply because one took his time to make his analysis doesn't in any way mean that they can't make mistakes or have inaccurate judgements when making predictions. so in a case whereby you've done your analysis and made your bet, and then later discover you've actually made an error or a flawed judgement, just because you spent time to make those analysis doesn't IMHO mean that you can't make necessary changes, plus you might never just know if those changes are what will actually make you win.
It can be so. But in most situations you make changes due to emotions or due to what you see. I was both in situation when changing bet was good idea, and when i lost money due to changing bet. My calculation says that it would be better do nothing.
May be my opinion is so, because i mostly bet in low leagues, where there lot of fixed matches. After experiments my strategy has fixed bet size until i rebalance my budget.