I have no interest in coming in here to hack on someone which is a popular pursuit among many on ET but a couple of observations: Yes, June has had above average periods of ranges as opposed to trending behavior, ranges require different strategies than trending markets. A trader has to recognize what kind of market conditions are present, you can't force strategies that are only effective in other phases of market cycle. You say "It's not bad trading on my part.." but you say you added to a losing position at market close, a very volatile time thus turning a small loss into a big one. That is the definition of bad trading.
Then you say you don't know when to take a loss but "this market is tricky". This could be interpreted as you have a problem with taking losses as suggested by your adding to a loser into the close OR you don't have a trade plan with defined trade management rules...both are problems.
Some market conditions offer better opportunities that others but it does what it does. If conditions are not suitable for the skill set or strategies of a trader than it's best for that trader to wait for conditions when they are. Blaming market conditions for a losing streak serves no constructive purpose.
Cool story!
This thread was specifically about results in June, though.
So, how was June?