One idea would be to take some friends with you, just to lend support. An older brother could help, a father - really, anyone might help to make a female skater feel more confident.
Of course, you shouldn't have to bring anyone else along. The shop workers should be more professional, and in most cases you should be just fine. I know it’s intimidating to walk past those guys, but you shouldn’t be treated badly.
One way to feel more confident would be to know a little bit about what you want before you go into the shop. Take a look at this article on picking the right size skateboard parts for you. The people at the shop should help you with all of this, but having an idea ahead of time should help!
And if you still don’t want to go to the shop, you CAN buy your skateboarding from an online skateboard store. I would highly recommend going to the shop instead, but if you can’t, there are stores online that can help. They won’t have anywhere near as good of customer service, but they will work if there’s no other good option.
This is an important note to add for the shop owners or workers who might be reading this: this girl's concern is fairly common. Making sure that girl skaters, young skaters and new skaters all feel comfortable in your shop is very important if you want to grow your business!

