Haha that’s hilarious. My brother has 2 kids already so I got a crash course in seeing how they change. His oldest is almost 4 and terrifyingly smart, to the point that there is no child proof anything, he can open any lock or device used to restrict something.
Child proofing is a waste of time and energy. They'll figure out a way no matter what you do.
I never did it with anything other than watching the little buggers and telling them don't touch. They got the point. Did they still get into stuff? Of course.
I learned that with kid 1, you're sort of scared and nervous about everything. Kid 2, not so much. Kid 3 you are now outnumbered and they will take over.
Also, it's all fun and cute till they start crawling and can escape from where you put them. I recommend a
baby cage. (that's a link, they're actually really awesome.)
Good luck!