Advice For New Broker

Hello! I'm new to the funding space. I worked in security for years and recently this year, I helped some catering businesses secure funding with the help of an ISO who I found through Google. It seems really profitable and I want to get deeper into the inusdtry. Is there any educational stuff I should be going for to help land a job? Like a degree orsomething? I've done sales before, but I'm not sure if I need a finance degree.

Also, what's the difference between an ISO and a funder? Is a funder a direct lender? Do I need a connection with them to get started?