It is very rare nowadays, that any project provides fast outcomes. It usually takes several months for a project to warp up and to raise in price. Unfortunately there are only several projects that are giving at least a small profit.
It depends on the project, if you are an observant person, a very nice project only took weeks before they finished their whole ICO, and ADEX NETWORK project is one of those ICOs that gave me profits in a very short amount period of time in year 2017, but if it took so long, it doesn't mean that a certain project will not be successful.
I mean investing does not have to wait long, you can sell it at any time, when you see your coins above the initial capital price.
Exactly, that is why you have to wait if you want your investment to make a profits, if you'll buy and sell all of the time and don't have any goals what price you wanted, you're a very bad investor.