Yes. Gift cards are the better option for sure. There is a setting where you can hide your address on your wish list though.
Even with the address "hidden" it is easily revealed to a buyer. Amazon actually says the list is supposed to be for friends, soooo they aren't in the business of keeping privacy.
There was a case of a gal also having a return on a giftcard so nothing is really "safe" unless it's designed for us to use.
Being a virgin is irrelevant unless you use it as a marketing tool. Even as a total hoebag, how I pleasure myself is not based on the way my partners have tried to please me and is quite different from requests I would get.
Regarding having no money, there is no guarantee of money in this job, for all you know it may not pay what you need. I would really advocate looking for other income while you get rolling with this. I don't know if you mean hard because there are no jobs? You can't physically do the job? Keep in mind camming is hard as you may be coming to realize AND there is no assurance you will get paid for the effort you put in. And as has been mentioned, don't worry about the undies thing. Wear what you've got, be smart with your spending and invest in the things that matter - a cute panty set won't look cute if your camera is potato quality, invest in a cam first and foremost. If you are really serious about this job I would take the time to learn proper financial management so you don't blow all your money on silly things.
I don't want to say there is no such thing as too poor to cam ... but realisticly there is. You need a good computer and to be able to afford that plus internet. But if you save your pennies you can get better equipment that will make this job better and POTENTIALLY more profitable. Good equipment still isn't even a sure way to money, some girls still struggle with amazing camera, lights computer etc.
If you're desperate for money I would really honestly advocate for getting a vanilla job to help you get stable and even see if this is something you can sustainably do.