Be your own boss...
Have the life that you want...
Get rich quickly (without doing anything)...
I want to share with you how I got rich by...
Avoid any job that sells itself with these, or similar, hooks. If something looks too good to be true, it is not true. If you don't sell a good product, then you are the product they get profits from. Most likely they are selling a scam, or an online course.
To buy a course is ok, but only if that's what you want. Not as a tool for success. Also... probably there is a free course you can check on YouTube before jumping to the paid courses. See if you like the subject.