Expectation is about action, while anticipation is about results. Increasing our expectations for something fuels our motivation to act, but at the same time, lowering our anticipations helps reduce the sense of disappointment.
Investing can be seen as having a higher chance of success compared to starting a business, because you're putting your money into companies with stronger competitive advantages. However, whether you're investing or starting a business, you need to accept that you might lose that money the moment you put it in. Put in 100% effort, but don’t get too caught up in fantasies. The outcome will be a natural result of your hard work.

I dont see anything wrong in expectations and anticipations. The idea is that always keep doing what you are doing. As long as there is effort being put in then you are bound to expect results and to anticipate it is a good thing. That shows that one has a positive mindset. In the end it's either we win or we fail but we will learn what we might have done wrong if we fail.
You make it sound like there is shame in disappointment. While in my own opinion i know there is no shame in being disappointment. Since its human we will expect the results to come from we should know that there is limitation to humans and one can be disappointed but thats not the end of everything.