Often a project needs some time to develop code and collaborate with its partners. So in the long run need patience. There are still a lot of fraudulent schemes and it's bad, the tokens become worthless after being traded.
I do believe to earn more you must be patient enough to achieve what you desire. When it comes to selling better wait until the price goes higher in order to have good trade. Waiting to achieve the perfect timing when to trade is really worth the wait. Or else you end up regretting.