It's important to realize ascending to the level of engineer isn't only about knowledge of the tools. It's understanding why - not only how - in situations X or Y, you use tool Z as well as how it applies to the broader business / product context. Knowledge isn't power, Understanding Is Power.
Put another way, engineers are intentional. You have super powers - super powers *you* worked hard to acquire - and you are thoughtful and intentional about how you apply them.
"I'm intentional, therefore I engineer."
p.s. The fact that you're asking is a great sign. You're already on the right track.