How to gain confidence shopping for clothes in public?

I really hate going to stores to buy clothes. (This does not include stores like Target, Walmart, and Ross type stores, but I do want to go to nice stores once in a while as well.) I really don't like shopping online either as I want to see the product before buying it. I feel intimidated by not only the employees there but sometimes the clientele. I really can't concentrate. I take my iphone and try to be busy with it so to try to block everyone out who is around me.

I literally feel exactly the same way when shopping for clothes. But I try to focus on what I'm doing and reminding myself that the employees are there to help you and the other customers are (hopefully) there to shop for themselves and not to judge other people and what they're doing.

The solution is simple--order something online, in two sizes (so you can see which one fits you better), then try it on when it comes back to your house. If you like it, keep the size that fits and return the other. If you hate it entirely, return them both.