Keep it up! for all things will follow. Learning here is not easy. I too get confused about cryptocurrency if only I have no friends helping me out here then probably I left in this forum. I can't get too long with the technical discussion which is only the basic of cryptocurrency but I was having a hard time on it already. I have been posting here a lot and joining too bounty campaign but sad to say did not earn from it instead all of the promise rewards are scam or if there could be a project that pays then it so bad that it will only be like few cents that could not compensate the time and resources through out in the promotion of the campaign.
I can feel your exasperation on trying to understand it all. Nevertheless, regarding being scammed in bounties, we all have felt it and or still experiencing it depending on the level of our information. You can choose to fellow what bounty to join from this thread here
https://bitcointalk.org/index.php?topic=5228629.0 The bounty section is still bedeviled with scam unlike the bitcoin section that signature campaign have 99%-100% chance of weekly payment in btc and reputable managers are 100% trusted to pay for your help, labour or support for the publicity you rendered.
If we keep sanitizing the bounty section by exposing scam bounties and managers, the section too will be a nice area to trust. I wish you the best as you keep doing your best on the forum.