Often times, making investment decisions is a hard nut to crack for retail investors like you and I.
While some jump into making investment decisions and some from an analytical point of view and some no particular strategic approach.
It is important to know that as retail investors that we are ,we should make financial decisions based on a strategic, fundamental and technical point of view, to ensure optimum return on investment.
It's no longer a new thing to many that in every investment or business one is into that involves finance, need better decisions and good knowledge or information to survive on it. The type of decision one make financially determine it outcome. Just as you have said it very important for informed decision that is the only key, many failure today is as a result of lacking proper decision. One of my man bought one shiltcoin during there presale before listen the coin and after listening what he sold out could not even cover up the money he spent, his decision was wrong one and he made a very big loss. Any decisions that involves money one need be very careful and smart, have deep information and knowledge before venturing in or take such risk. Bitcoin is the only decision I see that if one calculate well no decision on it can give Total loss if your smart enough.