Get/borrow books, and READ them.
There is a LOT of info in the old books. The info in books from the 1980s and earlier are still good.
As
@earthmanbuck said, SIMPLIFY, aka KISS.
- ONE camera.
- ONE lens.
- ONE film.
- Learn to do ONE thing at a time.
As
@webestang64 said RTFM.
To use your camera well, you have to know how to use the camera. READ the manual with the camera next to you, so you can follow along and practice.
Some film cameras have things that you have to know to just use it.
Example1. Different cameras put the meter switch in different places.

Example2. Some cameras have a different/specific way of loading the film. And you have to know how to do it.
Example3. Older film cameras are manual focus, so you have to learn how to manually focus. Later film cameras have autofocus.
What camera do you have?
Some cameras are more difficult and tricky to learn/use than others.
With negative film, the lab will adjust the exposure of the print, so you don't know how good your exposure was.
That is why
@webestang64 said you need to learn to read the negative.
As
@480sparky said, shooting film is expensive.
I told my students, each time you press the shutter, it will cost you $1 (film and processing). That is 35mm. For other formats it can be/is more expensive. And you have to shoot a lot, to learn.
Do you have a digital camera? If so, which one?
There are some things that you can learn on a digital camera, then transfer that knowledge to a film camera. This will make learning cheaper and faster.
Having said all that, WHY do you want to shoot film? Digital has many advantages over film.