Back when I used be a junior fresh out of school, my senior used to say, when releasing a first version or a major version of any software, app or website always implement easy to fix bugs.

End users or clients, especially the ones that tasked you with the creation of it, will look for a bug until they find one, if it isn't one you will spent hours trying to figure it out, instead give them one.
You know how to fix it and the client is satisfied they found one.

To this day, i still do that, although mostly not even aware of it. Eg: I know that's a bug but i'll fix that when (not if, when) they complain about it.

I even find myself telling the juniors, i develop with, giving them similar if not the same advice.

And that is what experience means, skill is something they teach you in school.
Experience is what makes you a senior or a junior, not your level of skill or the amount of keywords on your Linked In profile.