where to start with funding/pitching/customers/vendors, I will not promote

I have a start up idea in hardware domain. I have a plan and what I need for my startup to survive and scale. But I lack the knowledge on how to get funding? what grants are available?whom to talk to? how to get connected to an angel investor? what do I need to do now to have my start up by early next year? how to approach customers and so on. any advise related to any questions above will be highly valuable to me.