My thoughts are exact opposite of yours, whenever I watch the price swings I get temptation to play my hand because it feels easy money in no times meanwhile holding is gradual increase over the years which is why I avoid looking at the price charts more often to control the urge of trading.
I am kind of afraid too because at anytime things can go wrong when playing with random coins so limited my trading capital to very minimal so even if I lose it doesn't bother me that much.
Well, this is just being emotional, and emotions can be managed as a trader or an investor. As a trader, one of the key way to manage emotions while trading is,
1, As a trader, you must have trading plans, keep your mind on your plans.
2.As trader, you must have a profit margin rates, Don't be greedy to exceed your take profits planned rates
3.Be aware of emotions, how they affect you as a person.
4.Learn to embrace the market risks, Trading has it own risks and it is a good idea to learn how to embrace them.
5.As a trader, there are at times you make mistakes, learn how to accept your mistake especially when enter a position at the wrong timing etc.