Any advice on the interval (e.g. 1h, 4h, 1 day) of chart reading that I should look at if I plan to hold my position for few days to < 2 weeks?

If you hold for weeks, look at weekly, daily, 4 hrs. That should be good enough. I apply (with some modifications) of Dr Alexander Elder's triple screen, which I found it very useful. Read some of his works to find out more. Every screen is about a factor of 7 from the next i.e 4 hrs x 7 = 28, roughly 24 hours, which is the daily timeframe. Daily x 7 = weekly timeframe.

Use the 4 hrs timeframe for entry and exit, daily timeframe for current, weekly for longer term time frame. Higher timeframe takes priority, so if daily shows a bullish sign and weekly shows a bullish sign, the dominant trend is still bullish.

Are you referring to entry?