Just because it goes to 1000% profit does not mean I should...

Just because it goes to 1000% profit does not mean I should sell, it's far from the point of investing. What's important is fundamentals of the company and sector at the given EPS and PE ratio, along with all the other relevant metrics.

I am surprised at this question, usually people talk about how to deal psychologically with losses. I suppose you have to have a morally justifiable reason to count yourself worthy of the money that has been put into your stewardship. Fear of attaining some greatness that we don't feel worthy of usually leads to self-sabotage, kind of like the majority of lotto winnings. Having a charitable cause that you support will give those profits a whole new meaning.

Also, if you have done the research on a stock and feel that the medium term looks very promising then don't look at the SP or coal price every day. You can always come back and check the SP every 3 months when quarterly is released to avoid yourself the daily emotional rollercoaster of changing paper profits.