Getting a Crypto Asset Manager: Yay or Nay?

I’m in a position to invest some money for savings I could use down the line as well as being offered services to accomplish such.

Is a 10% retainers fee/management fee per cash deposit & 30% of Gross Assets Profit Growth fair for a client? What should a client lookout for to not get fkd over on a crypto investment agreement?

It might be obvious at this point that I need to do more research. Would love if you guys could point me into the right direction on what to read up on, etc. (I love to watch videos too so I’d love to know your recommendations!)