Every skill is worth it, and full stack software dev't is not an option for fast cash there is a lot of competition on the industry world wide, the learning curve takes a minimum of 8 month if u don't have programming background and after that you should work for internships, expanding your networks, builiding your portfolio, and others which will also take you another 1 year average, in general don't expect to start making money just at the 4th month after completing a 3 month course thats non realistic