Can momentum be a guide to trading at all times?

Are there some basic guidelines that I can follow while actually trading intraday?

What exactly are momentum indicators and how can these momentum indicators be used practically for trading and charting?

What are intraday trading calls essentially based on?

What are the charges that are payable in intraday trading. Are all the costs covered in my contract note?

Is there a framework for a trading guide and what should a guide look like?

What are the important things that an intraday trader needs to take care of while actually trading in the markets?

Should I do intraday trading based on tips, broker calls, chart analysis or data flows?

What is the really critical factor for success in intraday trading?

What all instruments can I buy and sell through my trading account?

I am told to start intraday trading with small positions. Why is that?