just buy a coin that you truly believe in and hold it for more than a year! easy
Yes, obviously. Whenever you have amount, invest them in best coin that are cheap or costly. We have staking system in many exchanges offering staking option for many coins. If you have already invested on the respective coin, follow the exchanges for more information on the same. Besides these, you can earn crypto currencies like BTC in this forum and hold them as long as you see a reasonable growth.