Always remember that invest what you can afford to lose especially in cryptocurrencies because it is very volatile and too risky investing in it. Also, before you enter and invest to a certain coin make sure that you understand the use-case of it and if all the factors to consider is very realistic and attainable so you really to do your own research.
Investing in coins is associated with great risks, especially in conditions of high volatility of the cryptocurrency market. There are a huge number of coins and it is very difficult to choose exactly those that will give a good price increase in the future. Many people are guided by the reliability of the coin when choosing an investment and they are right. Top altcoins and Bitcoin have proven their reliability in the market and their ability to give growth after a fall. But you can also invest in other coins that are not so popular but obviously have good prospects.