There's a post here at Writer Unboxed titled "Do I have writing talent?" You're asking the wrong question. The post talked about why this question didn't work and posed some different questions that would help us gauge our writing progress.
There have been several times I've seen people come to Compuserve, post some writing, and ask, "Do I have talent? Should I keep writing, or should I give up?" Maybe you've seen this in your writing groups, too.
Writing is a difficult profession. We all need positive feedback. We have to have some encouragement because there is a lot of discouragement in the process. But if you have to ask the question "should I give up?" then the answer just might be, yes.
Because there is so much discouragement in writing we have to know, in and of ourselves, that this is what we want to do. That this is what we NEED to do. We have to have the conviction so we can keep going. If your only commitment is from outside sources maybe you should put down the pen and save yourself a lot of hurt later. Or maybe you just need to take the time, think about what you want and you'll come to that conviction on your own.