if you are just a newbie in here, the bets thing that you can do is just to try to avoid having too much feelings while trading, and try to avoid being a greedy guy
Yes that is one way to control the emotional factor while trading. Adding about the skills, I would say a newbie should be well versed about the technology he/she wants to invest in and the market situation by which I mean to say he/she should have the perfect market knowledge. Also some knowledge about economics and finance would not be bad either.
Initially, a beginner needs to learn enough information to understand what exactly he wants to do. in any case, at the same time as theory, you need to engage in practical activities, but this requires a small start-up capital.
I believe that beginner's should understand how the system in the market work's like buy when the market price is low and sell it again when it increases, with this simple rules, anyone can be very rich if they are patient enough on the different situations in the market.