You need to leverage the power of other peoples money.
Find friends and family who can go into business with you on a 50:50 profit split.
You need to write a 15 page powerpoint presentation, describing your business plan.
You dont need to disclose you entry rules, but you should describe the risks you are taking and the kind of drawdowns to expect.
If your plan is good then people will throw money at you,
however most people will also be realistic and know that the likelyhood of failure is quite high too.