You will not become rich by investing but you will not reduce your capital but it should not be forgotten that making a good investment causes your ambition to increase. When you become ambitious, you decide to invest more. But this is not correct behavior. You should stand by and proceed with Hodl in such a case. You should also be prepared for market fluctuations. Avoid investing if you have a weak hand. When investing, you should always be open to change and investment strategies from 15 years ago will not work.
Surely the skeptical attitude must be thrown away. yes, as you mean, emotional control in the crypto world is the main thing and revenge and against the mainstream besides the end goal as the title OP wrote that Investing does not guarantee you will get rich. We are, now many are proficient and have their own ways and tips on investing and navigation.