I'm 15 I have grown up in a christian/baptist household. My family has never been conservative clothing wise. There is no debate concerning wearing short shorts or tank tops. I personally want to change my dress to very conservative. I feel that the right thing to do would to be wearing skirts and more modest apparel. How to I go about this? If anyone has lived like this how do you deal with the temptation to wear jeans or shorts? How do you respond to the questions? I also don't know what I'm going to do with all of my clothes I mean they're expensive clothes that I wear for worldly purposes but I love them? Also, how do you go shopping seeing all of the clothes and wanting them?
My suggestion is to follow your heart (with a lot of prayer, of course) and to do whatever you feel God is convicting you to do. It's nice to see a Christian young person (or person of any age, for that matter) honestly seeking God when it comes to a variety of situations.
Here is one thing to remember, though, as you carry on with this decision: to try to maintain a humble heart as you carry out your final decision, and keep in mind that convictions will vary from Christian to Christian when it comes to certain things, including this (I, for one, don't have this conviction). And there will, without doubt, be people you see often who will notice this change. Some will not say anything (probably due to shyness, or just not knowing whether they should say or ask anything), but don't be surprised if they start studying you. If this happens, try not to take it personally, as when something about someone looks noticeably different, it seems to be natural human instinct to look (admittedly, I am one one of those people who gets tempted to do this, but I do not mean anything by it -- something I have to work on, I guess). Others, who are a little more bold, might come right out and ask you. What you could do, in this instance, is tell them that it is a personal choice you have made. Try to do it without going into any (well, for lack of a better word) "detail", as it would only succeed in making it look like you're rubbing it in people's faces about your decision and coming off as "holier-than-thou". That would turn people off, especially people who aren't Christians (and those who are, but are quite new to the faith) and don't understand the situation. What you should do, however, is concentrate on leading by example, continue to pray, and God will give you the right words to say to people when the time is right. Then, you'll truly come off as set-apart, only in a more positive way (although there will still be some who will have their own ideas).
As far as what to do with your old clothes, I honestly don't know what to tell you on that. The only thing I can say is that you donate your old clothes to some sort of thrift store. Not only are there people who have not been convicted in the same way, but there are some pretty needy people who are desperate to have clothes of any kind at an inexpensive price. And there will be differences of taste, even among such people. They will be in the store for those who want them, but whoever does not want them (for whatever reason, including situations similar to yours) will simply choose not to spend their money on them. Think of it along the lines of "recycling" clothing (not unlike recycling aluminum cans, glass bottles, etc.) - which is actually not a bad thing, really.
Hope this helps, as I have explained this the best way I possibly know how.
God bless you and your endeavors.