If you ask me, what is the hardest job? Then perhaps my answer will be the investment profession. It is a truly unique and harsh profession compared to other professions. Especially with Bitcoin and a volatile market like cryptocurrency.
Nope I disagree with you about the idea that investment is the hardest job, not as a profession as strategy. It is the easiest job if you have knowledge about it. It just needs nothing but HODL!
Anyway investment is easy when you have a proper awareness of things like knowledge, strategies, and experience as well as funds. So if you don't have it, I think you are right here that investment is the hardest job. Because if you don't have proper knowledge, then investment can be a gamble for you. Investment in Bitcoin is a complete department in which you should have need to learn a full fil knowledge/awareness of market sentiment, if not then volatility can look like betting or gambling.
I believe, this is a subjective topic as every person has their own take when it comes to investment matters. For some, it is the hardest, while for others, it is the easiest. So the approach to this topic varies from one person to another, and how knowledgeable they are on this field. Of course, if you have little to no idea, would be very hard for you to think what to do. In this case, you need to educate yourself and that will give you insights on how to do things and it will give you idea that it is not hard after all.