Second guessing dress?

So I am a major over thinker and just about the most indecisive person ever, so trying on dresses has actually been a little stressful for me. I went to a store, tried a few on but didn’t love any. I went to a different store with my 2 best friends (one flew up from out of state), my mom and future MIL, and had the same issue. I liked one more than the others and really felt pressure to buy one since everyone was there for me that day so I purchased it. Immediately after anxiety and that sick to my stomach feeling came over me. I called the next business day and was able to put it on hold. I went back with just my mom and informed the sales lady I just felt like I needed to try on more to compare. She only had 2 picked, one being the one I had already purchased. Again I tried a different one on and liked it more than the previous, but the consultant really wasn’t letting me try others on and was trying to get me to narrow down my choices between the 2. Since I liked the new one better, I changed my order to that dress. I never had that emotional moment and I still am questioning if this ones right....is this normal?!? She said she would put the order on hold until Monday just to be sure. Do I go through this AGAIN and go back, or just try to be content with what I have now?!