The question of how much to invest depends on the financial situation. Definitely invest in the beginning, just how much you are willing to lose. It depends whether you want to trade or invest in the long run. Also important, i would consider what altcoins you will invest in. Definitely investing in giants such as bitcoin, etherum and the like is a good step forward. To start with, start with a small amount of $ 100 to $ 200, and increase over time. The crypto market is incredibly volatile, jumping in tens of percent in both directions, so you'll see what time you do. If you are profitable, you can reinvest this profit and thus increase your portfolio.