Watching ads for satoshi is useless (and can infect your pc). Do something you are good at and you will make more money then watching ads...
In the beginning you say watching ads is useless, but at the end you say to watch ads. What are you talking about?
Do the best in everything any kind of job you get in bitcoin, then you will get a lot of btc in a week if you are able to do the best at every second.