Writing stories : Should I continue?

I'm not sure I completely get the whole idea behind why you're concerned with continuing to write - whether it's because someone commented on your writing or whether you're concerned about the topics you've been covering - but either way, I see no reason for you to quit if it's something you enjoy. Part of writing is exploring ideas that are challenging, pushing ourselves to reach into the deepest, darkest parts of the human psyche and pulling out something raw and real. If people have a problem with what you're writing - to be completely candid - screw 'em. It's that simple.