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.
Also on how they can be able to learn here is what could be the best gather the knowldege in a way wherein this is really helpful basic thing is the best atleast that you know how to understand this as well.