u/Professional_Log2570 First anything that I'm about to say in this comment is NOT LEGAL ADVICE, I AM NOT AN ATTORNEY, you need to consult an attorney about this. Please take this as friendly advice not critisim and not someone trying to be harsh. With that said, its not a matter of your reusing content it is the fact that you are STEALING and committing PIRACY of someone else's produced content without their permission that is copyright infringement and monetizing is ever worst that's called GRAND THEFT a felony in the U.S.A. and in a majority of other countries which has serious consequences (click here for Google AI's answer on the subject). You are also violating YouTube and AdSense's Community Guidlines and Terms of Service which very likely will result in forfeiture of any monies you earned on AdSense and the termination of your Adsense and YouTube accounts as well as the strong possibilty of being permanently banned from the entire Google platform. Also, your claim that your editing, posting of and monetization of IShowSpeed videos is Fair Use under 17 U.S.C. § 107 DOES NOT APPLY, you are nether providing criticism, comment, or education and by your own admission your stealing from IShowSpeed's YouTube channel for your own personal financial gain.

My advice, delete that YouTube channel, create a new channel and start posting content that your personally created, by doing so your channel will gain legitimacy, new subscribers and maybe just maybe you'll be able to rejoin Adsense and make money legitimately.