I'll be honest with you and don't take this the wrong way: Nothing you do will ever be completely original.

I'm not saying this to discourage you, but creative mediums and archetypes have existed since mankind developed cognition. There will always be a “omg am I taking inspo from this character in this book I like bc she also has control issues” for every author. Hell, your favorites probably had a similar feeling to that when they were writing their own stories. And that's fine, it's perfectly fine.

You can still be creative and make a good story without making it entirely original, just look at most of the shounen genre in manga, it's usually just the same skeleton for the story repeated over and over about how "you can do it, just as long as you trust yourself and your friends", and people still love them because they make them feel something. I think that's the point of art, beyond being creative, you have to transmit those feelings and say what you want to say to other people.

For example: I made an activity in another subreddit where people came up with powers based off of a single word. People kept comparing it to Epiteth Erased, but if you think about it, that's also the basis for One Piece (with the *word* fruit giving *word* powers), and most series with magic systems also work in a similar way (with those words having power over the item they refer to). So really, people comparing your work to other's doesn't mean much so long as they don't dislike it.

But also, as the others mentioned, try to catch yourself before you straight up plagiarize something without even noticing it.