Hey! One of the main things that changes as you get older is the amount of Independence you have. When you were five, would you have gone out on your own? No. Would you have wanted to? It's likely not. Would you have bought your own clothes, made your own arrangements and controlled most things about yourself? No. Would you have wanted to? Even if you had, you probably wouldn't have been capable.
When you get older, though, you start to want those things and you also start to get them. Unfortunately, it's basically impossible for your parents to get it exactly right, so of course there's going to be some tension building up.
The key to solving things, I think, is in communication and negotiation. If you can get things out in the open between you, then you can begin to resolve the issues.
What exactly doesn't your mother let you do? Is it specific things she won't let you do (i.e. no wearing clothes like this, no doing your hair like that) or is it more of a psychological thing where you just feel very pressured into being a certain way? It's difficult to give specific advice without knowing. If you would like to be more specific, then please either message me, make another ehelp or create a thread in the serious forum where you'll be able to discuss it with support leaders.
However, that doesn't help you much right this minute, so I'll try and give you some general advice.
If she's giving you concrete rules, then you need to try and move them. For example, let's say she says you're not allowed to wear certain clothes. Ask her: why not? After all, you can't do anything if you don't understand her motivation. Then you can start to make a compromise: for example, if she thinks a top is too revealing (I'm sorry but I don't know whether you're a lad or a lass), then you could arrange to wear it with long trousers, or with a vest underneath, so that it doesn't show as much, or only when you're going to be with friends and not when there are guys around.
If you feel psychologically pressured, then it's just up to you to stand up to her and make changes. If she doesn't like something you do, it doesn't matter: as long as she tolerates it, then that's fine. It takes a lot of guts to go against advice from people you love and it's difficult to make changes, but once you start to stand up for yourself, it gets a lot easier.
I can promise you that your mum isn't deliberately trying to restrict you from being an individual. She has other motivation. It's most likely either wanting to protect you or wanting you to stay as a child. Either way, that can't last forever, and now is the time for things to change. She's not your enemy! You two can work together.
Hope that helped! Like I said before, go ahead and PM me if you want, or otherwise post in our support forums and I'm sure someone will be glad to help.
-Fern