A training course will always contain some information that can be used in trading. It's all available free elsewhere but the course gives you a package deal. It's worth paying for if you have a limited time period in which you must urgently begin trading or by the end of which you must abandon the trading idea for another enterprise. After the course you must expect the strategies you learn to work but not very well. This ensures that you will have the motivation and still enough capital to come back for repeat business before you go broke.
Not sure why you would want to know about a "bad" course but I can recommend Al Brooks as having produced a good one. There are a legion of folks on the You Tubes of the world looking for clicks, subscribers and credibility.....dime a dozen. You don't however need any course good or bad if you are willing to do the considerable work to understand price behavior. Price does the same thing whether it's Paul Tudor Jones or John and Mary "spend my day jerking around on Elite Trader threads" watching. Spend a number of months,depending on your ability to focus and understand what you're seeing. What happens when price spikes...does it tend to continue..does it tend to revert back to it's base? If it starts to trend, what is the slope of the rise or fall, what is the nature of the consolidation flags? How long do they last? Do they tend toward continuation or reversal? If it looks like price is "overbought"/"oversold"..is it? Is it more likely to continue to or reverse? Is the upper trend line sloping at a different angle than the lower one?...What might that mean? Put a MA such as a 20EMA (nothing magical about this number), does it help define the geography of price development for you? What is the slope...does that make a difference? Add pivots such as prior day's high, low and close and current day open...what happens at those levels if anything? Bottom line, a smart and diligent technician can help you understand what you are looking at but don't expect anyone to tell you how YOU should trade. NO two people trade just alike because no two people ARE just alike. Do the work, observe, test, learn and if ...IF you work hard enough, you might have a chance.