Learn something new every day...

I have to admit honestly that I've never paid much attention to passive verbs versus action verbs and other such details when i write. I type whatever comes into my head and somehow when I look at it when its done it all seems pretty coherent. I've never had a problem getting my meaning acorss, and several of my beta readers have commented on how often I cn make them cry with certain stories. Hmm. If I started paying attention to verb usage and stuff like that would it detract from my storytelling , or make my writing better? I honestly don't know. Will limiting my use of certain words decrease my ability to convey my mental images to others? Or enhance it?
If anyone reading this has read any of my stories, can you tell me if I fall into the trap Alex describes and can I make my stories better by changing my word usage?