does anyone have any statistics % or information about how many people either succeed or fail (lose their money) doing trading in cryptocurrencies, also the people who are working on their own coin project( not a scam project)?
You are looking for something completely different data from each other and these are not at all connected in terms of technical things of trading but only exchanges might give you one part of your required information. In quick thinking, I guess people who are trading bitcoin with long-term targets might be succeeded by this day but we cannot have exact numbers for this but I'm sure in percentage it will be more than 99% for sure.
Moreover, what you are looking for by having number of people who are all working on their own coin project; I believe this got nothing to do with exchanges nor crypto trading.