If I have 0$ at the moment can I make 100$ in 2 or 3 months? How?
What if I deposited 20$ .. Can I make them 100$ in less time?
Only if you will invest in very promising coins and you will simply be lucky and they will give 5x's within 2-3 months. If you will use scalping, you can earn 5-10% of the deposit a day, calculate how much time you will take to increase your deposit 5 times. But you need to be able to do this, in the second, there is always the risk of losing your funds, or to go into long-term hold. Therefore, it is better to start participating in bounty campaigns and airdrops and for 2-3 months you will be able to collect $ 100, or use the advice of people in the posts above