Hi friends! I go to the University of Florida and I’m currently a freshman. I got my AA in high school.
I’m double majoring in history and either management or marketing. I’m minoring in dance, sustainability studies, and sales engineering.
Be honest, is this too much work for mediocre job prospects? I appreciate your advice! 
If this is adding an extra semester or two to your studies, then yes, it is too much. You can take classes in sustainability studies and sales engineering without having to complete a minor in them. You can find a way to convey your knowledge of these topics on your resume without having to complete an actual minor.
I have a friend who came in with a boatload of credits; she’s double majoring and double minoring just because she wants to stay her whole 4 years.
My point is: if doing so doesn’t add extra semester/quarters beyond the standard 4 years, then go for it.
My two cents, anyhow.
If you’re doing it because you enjoy these topics, then live the dream. If you’re doing it because you think that employers are impressed by having two majors and three minors, then you might be wasting your time.
Your majors/minors are all over the place. I suspect after you take the intro course to all of them you’ll whittle them down a bit. History is useless. The strongest combo of your choices would be Management and Sales Engineering.
This but as for serious job prospects; I would strongly suggest you re-think your choices like Zhanger had said.
As a note; don’t always listen to your professors for a given field’s employment trends if they have no factual information. I’ve read or heard about similar things happening such as claims like “Education is a great field to major in because with a background in education, you’ll be an ideal candidate for managerial positions due to you being able to train employees better,” or “History is a great field to major in because with a background in history, you’ll be an ideal candidate for any research position,” or etc.