How to focus on the not-so obvious outcomes in trading?

How should I focus on being profitable in trading rather than being right?

What is impact cost and how does that impact intraday trading? I was told to focus on stocks with low impact stocks. How do we do that?

I am trying to get a hang of trading based on technical charts but find it quite confusing. Can you throw some light on how I can focus on a handful of technical charts and help make profits?

I have some personal hassles and that is impacting my trading performance. How do I get over this problem and focus on trading?

Are algo trading and internet based trading on the very big in size and how has the trend moved over the last few years?

Are the situations when focusing on taxes can lead to huge losses for me?

Are there any costs in trading that are not too obvious but can make an impact?

Are there any qualitative factors to consider for intraday stock selection? Does it really matter for intraday trading?

Are there are any techniques of keeping my trading positions in check?

Are there are any uses of options other than trading on the buy side and sell side?