5k $ is a good money for investment. I will firstly Suggest you that before taking your decision do some research on the market and gather some knowledge about this market then go for investment. I will suggest you to split your investment and put 30-40% in bitcoin. Then other 30-40% in highcap allts like ethereum , neo , cardano, xrp, eps like this. This type of alts a less risky and have a good chance in future to give a lots of profit. Then with 20% you can go with low cap alts. This kind of token give a huge amount of profit but the risk factor is very high.
It's good suggestion. Even if 20% of low cap altcoins will go to zero the loss will be much lower than profit from bitcoin. BTC can easily make x5-x10 from current levels in next 2-3 years.