Looks like you are already way ahead on the right path (entrepreneur, investor, on a path of learning... :) ), though I would recommend a structured reading of Financial Statement & Analysis and Economics volumes in CFA Level I prep, not for the exam but for yourself :) especially if you are not with an accounting background and as aspiring DoItYouself ActiveInvestor :). If you are on the path of learning and improving, there is no other outcome than getting better and making a lot of money (slowly, compounding works on both knowledge & money). Btw, you do not need to work under someone to get better, but if you can can, all the better :)
I feel that most do not like the marketing aspect of fund management (to raise capital and handholding of clients), no wonder some went the route of buying businesses that let them invest the float (the business names are in this sites address :) ).
If your goal is to make money for yourself at the expense of your investors, then you are in the right profession and well if you are lucky you investors might make some too :).
Finally do not be disheartened if Active investing does not work for you (say after 10yrs of working at it, for most it does not - or does it-as they end up making a lot of money despite their investors being worse off than the market, seems 2/3rds of active investors fail to generate returns higher than the market), you can always fall back to passive investing (periodically investing in a low cost index fund or invest with another fund manager whose framework you can relate to :) )
As Munger aptly puts it,
"If you invested Berkshire Hathaway-style, it would be hard to get paid as an investment manager as well as they're
currently paid ‑ because you'd be holding a block of Wal-Mart and a block of Coca-Cola and a block of something else.
You'd just sit there. And the client would be getting rich. And, after a while, the client would think, "Why am I paying this
guy half a percent a year on my wonderful passive holdings?"
Good Luck or should I say Good Skill :)