Yes you are right:
-I was scammed by GAW like so many others
-I was scammed by BTCJam, which stole my money
-Yobit won´t let me withdrawal 17K ION for no reason
But i stay to belive in crypto, some things will show up others won´t.
You should get a clearer understanding of this thing you keep calling "crypto".
Decentralized cryptocurrency was invented in 2008 to avoid centralized control of money by governments, banks and other third parties.
By putting your trust into companies such as GAW or Yobit, leaving your money with them, you are giving control of your decentralized cryptographic assets to these entities.
So here is my advice for you: Stop throwing around the word "crypto", which means nothing if you don't understand how decentralized cryptocurrency works and what it's here for. Stop giving your bitcoins to scammers and instead start holding them in wallets that you control the keys for.