Patience is the number one key to success on investments, you should not rush everything. Investing in altcoins can help you make profits through trading which is the most popular method to make your coin grow. We know that no investments is not risky so you should always ready yourself whatever happens.
Patience is the key when it comes to investment as you cannot dream of becoming a millionaire instantly unless you win a lottery. 
if you are able to know when a coin is moving and if you are able to understand the signs then you can make a good amount of money through trading and i that is the best investment you can make in the crypto world.Yes you need to have a close watch on the price movements and if you see a coin constantly moving upwards then you can expect that it will move in the same direction and that would be the right time to invest in that coin and sell it instantly when you have made good profits from it.