What makes you think you know everything?

I put in the time to figure it out, and to adopt a series of methods that i use to rapidly determine what needs to be rapidly determined.

And most importantly: because i’m Me. By default, i am and always will be the most qualified entity to know what and/or whether anything is or isn’t right for me.

Or, the super short answer: critical thinking. Learn it, use it, minimize your dependence upon others. Find your own answers. No one else can do that for you.