Music video

[Robin Lucina]

Hello.
I have something to ask.
I made music video using Fire emblem three houses and Super smash bros ultimate cutscene.
And used music from another game and another Pop music.
For example, I cropped "Super smash bros ultimate cutscene" and used "Let it go" music from Frozen movie.
And I also used "Fire emblem awakening cutscene" and used "Kimi ga iru ka" music from Final fantasy.
I want to post all my music videos on my instagram. (I have more music video like these)
Will this be okay?
I mean, I made this music video without permisson from both company.
Will I be sued? Or fined?
I don't know whether this is legal or not.

Thanks.