It would be reassuring to see some evidence that your method works, like screenshots of your earnings or testimonials from satisfied customers.
The cost seems a bit high for a guide, especially without any software included in the cheaper option.
There's a lot of free information available online about growing a TikTok account and finding profitable niches. Have you considered creating some free content to showcase your expertise before selling a paid guide?
That being said, if you can provide some more info or social proof, I might be interested in learning more.