Experts in anything will tell you that there are things that you should prioritise.
A different set of experts will tell you a completely different list of priorities.
When you’re trying to filter in the signals from many experts, it can be overwhelming and the result is that you don’t want to do anything because it seems like there’s too much to focus on.
The thing to remember is that as much as there will be someone that says it is mandatory to do X, there will always be someone that didn’t do it and also got what they wanted.
At the end of the day, your own experience will be the only proof that truly shows what worked for you or not.