I used to invest in ISO and make a profit. Recently, a lot of coins in which I invested fall down after entering the stock exchange. I do not know what to do about it ...
You can't do anything about it, because now is a bear market. You can start investing in IEO, most likely you can make money.
more and more new project now do the ieo. This may be a big problem for ico can so will lose their investors. but the ieo should also be considered, if later many scam project do, it will put the interest of the trade in their exchanges.