It is wise. We have to be the worst psychological preparation before investing. For beginners, you'd better start with a small amount. u need to accumulate experience instead of getting rich right away.
Psychological preparation should be more than the investment. When you loss your investment you may recover that but when you loss your psychological balance it will be difficult to recover it and recover loss.
Most people losing it , due to the fact that you begin to get more profit and I think that coin will grow to infinity , I think you need to properly get in and out of coins