Inspiration for me can come from emotional highs or lows, conversations, or just mere pondering. My personal favourite poems are those that effectively capture a single moment in time... the ones that paint a still image in your mind. To do that effectively is truly an art.
I am definitely not the right person to comment on rhyme, meter, cadence, etc. I have been working on it lately, but it still seems forced, somehow. My favourite style has always been free verse. I do admire a poet that can rhyme so very well, I just find it limiting sometimes.
Not too sure if this was the kind of comment you were looking for, but it's all I've got!
Most important thing? Keep writing if it makes you happy. If it becomes a labour, let it rest for a while. It will come back to you.