The Internet is a funny place. There’s so mamy opinions,. And everyone is an expert.
The problem is that you need no qualifications, so most of these opinions are just plain wrong. I have heard things like “the rear curtain setting gives you softer flash pictures”, “you need to use the zone system”, “you should never format a memory card”—and many other absurd statements.
So, my advice is, “beware”. Especially if it costs money. Do not buy “exposure courses”. Exposure is simple: if it is too dark, make it brighter; if it’s too bright, make it darker. And do not buy Lightroom presets, unless they are things you truly cannot do yourself. And so on. Buy courses only if you get a 100% money-back happiness guarantee.
And especially: when you read something on the Internet, research a little. Who is telling you? Research them. Are they are real photographer? Are they an expert in their field? Or are they Uncle Fred, or a teenager in his mother’s basement? Judge their answer based on this—then run it by another few people.
Or just take courses from reputable, proven speakers. That is also a time tested way of doing it.
Perhaps I can recommend my ebooks and my courses—but you be the judge. Caveat emptor, whatever you do.