i have difficult to find new real project
First of all, visit the telegram channel of the bounty campaign. If there are only posts like: oh what a good project, oh what a good team ... and nothing else, pass by. If the telegram channel is seriously discussing this project, plans for the future, entering the stock exchanges, then this bounty campaign is worth taking a closer look at.
No thats not how it works you can participate in many different shit project even they want to list in exchange or even there are contract where that coins will be listed after the sales . It will not guaranteed a good rewards if you will participate in a campaign that only want to be added in exchange since that's all want of every project.