Hi everyone

I am writing a fairly large c program which is in its early stages. It is merely a proof of concept thing, not for sale or anything like that....I am an inexperienced programmer.
While it is small I would like to know how I should organise it.

I have a number of *.c files. For each *.c file I have a *.h file.
In the *.h files I list relevant definitions and function prototypes.

I then include the relevant *.h files into whichever *.c files need the data they contain.

I do not include any *.h files in other *.h files...only within *.c files.

I have run into a problem where one *.h file references another *.h file that references the first one.
I can't work out how to resolve it. I want to keep the relevant functions and definitions in their respective *.c files.

How can I fix that?

So basically, am I organising the files correctly?
(I have tried looking at other code but this wasn't helpful as the programs didn't resemble my program's structure)

How do YOU go about using separate files, and what do you include (*.c's? *.h's?) and where?

Thanks very much!