Second thoughts on my dress

I purchased my dress from a bridal outlet. It is a sample and needs a few repairs but I got it for a great price and I'm told fixing it will not be an issue. I've been having second thoughts since I purchased it and not just because of its need for repairs. This weekend while shopping for bridesmaids dresses with my girls, the woman at the store pulled a gown similar to mine so that we were able to get an idea of how the style of tbe bridesmaids dresses would look with the style of my gown. Now I cant get this dress out of my mind. The dress she pulled for comparison had everything I love about the dress I already bought and none of the things I keep second guessing. I would really like to go back and try this dress on but my MOH thinks this is a really bad idea. My wedding is 9/5/2020. With less than 9 months until my wedding, I'm not even sure purchasing a new dress is a possibility. Then comes the hassle of attempting to resell the gown I already purchase. That being said, I dont want to regret my choice on my wedding day. Am I being silly? Thoughts?