Debbie V has some good advice, especially suggesting you try to make sure you can justify the changes you're making. You don't want to get in the habit of picking at scabs which, I just realized, is a horrible, horrible analogy.
Or maybe it's a good one, just distasteful. The point is, worrying a poem to death does the poem no good, and meanwhile, all that wonderful creativity you might have otherwise expended is going to waste. I suggest you write, put your writing on the back burner for a while, read some things here, maybe crit some on SYW and then, yeah, after 50 posts you can put some of your stuff out there and get some other opinions.
My experience has been that--by myself writing, with only myself as a sounding board--I tend to doubt myself. It's invaluable to have other writers reading your work and offering their opinions, which you are free to take or not take.
Try not to worry. You've found a home here, it's a great place to learn and practice the craft. Welcome to aye-dub, btw.
-kkbe