Regret Not

If you are one who suffers from buyer's remorse, stop! Hopefully I can help you figure out what looks good on you and where to spend what kind of money so that when you go out you can just tell by looking at things how they will fit. Of course, if you question it, try it on. But if you shop at the same places then you can start to see what different brands fit like.
My best advice is learn your stores return policy before buying anything. I am so dedicated to Nordstrom because of their policy. You literally can return anything, anytime. And they can fix broken buttons or zippers. And they can refund you on any card. Whereas Forever21 you cannot return jewlery or sale and everything else can only be refunded via store credit. So learn the policy! So when you find something and try it on that you only think you love you should buy it and take it home to see what other things you have that it can go with and also look in your own full length mirror to see if it really was that flattering. Then if you decide you did not need it after all, return it.
There is also another great option of holding. Most stores can hold items for up to a day, so try on the item and if you think you love it but are not positive, put it on hold. Go other places for a few hours and if you cannot stop thinking about the item, go back to the store and buy it!
Danger danger: never buy something just because it is a great price!