You are wrong, investment strategy really helps and guarantee or increases the chances of success in investment, there are some strategy you will use as an investor you won't succeed in Bitcoin investment because is not a good strategy for you, before you can succeed in your Bitcoin investment the strategy you are using to grow or accumulate matters a lot, there are newbies that are using the DCA strategy to accumulate Bitcoin if they start waiting for a dip to happen before they can accumulate will that strategy lead them to success definitely no, so strategy is very important when it comes to bitcoin investment because is part of the things that grantee your success.
Yes patience, consistency, determine are part of the things that grantes success in Bitcoin investment so also the strategy you are using.