Giving up is not the right answer to your trouble in crypto, the best thing to do is to study everything give time to read more articles about how bounty works, how to earn the right token and how to select a good project that has high potential to become successful. Of course, read every detail of a project you are to participate to avoid getting scam or not getting paid for the effort you insert.
1. Team of developers
2. Usefulness of the project (longterm)
3. Whitepaper information
4. Roadmap must be check
5. Check the development of the project past/present and future
6. Check if it is listed on an exchange or what exchange are they planning to get listed in the near future
Those are just a few of the basis to select a good project that will surely give you good income not in an instant but within few months of holding or even years of waiting to raise the value is still worth it. I am holding tokens from the bounties participated from the past not even sell any of them and still waiting for the perfect time that their values will be worth the effort inserted.
I am suggesting if you are an investor too you can check a new and potential project called - BitCoin ONE
https://www.bitcoinone.io no ICO but super fast development with good starting price and already in Coin Market Cap.