Selling poker courses or whatever gambling related courses with a new account and no reputation known in this forum or in other platform is not a good start and as you are selling the courses is that there are courses that can be found online for free and even some app that are free to use where you can practice after learning the free poker courses that you have found. I think it will be hard to sell the poker courses you have as many people wanted to save money by learning from free poker courses.