You might find snippets of free information on websites but I doubt you'd find a complete, in-depth course. You might be able to find some programming forums where you can post messages and get replies to your specific questions about Delphi.
Your best course of action would be to get hold of some books on the subject and have a read up, then maybe look at doing a course in a local college - that way, you get to ask questions with a real person instead of waiting for a reply on a forum!
As with any programming language, I don't think there is a quick and easy way... just plenty of hard work!!!