How can I learn to control my emotions when I don't even know what they are?

Taking a couple of deep breathes, to calm your mind, will typically help to make you feel more in control. Therefore you will be able to sort out your emotions and from there be able to find a way to deal with it.

Stay calm, take a deep breath, analyse your thoughts and don't do anything irrational or under emotional impulse.

You can learn to control your emotions when you dont even know what they are by trying to calm down. For me, I try counting to as high as I can get. That doesn't work for everybody, but it did for me.

take it slow and think of what made you feel this way and if you feel down try and keep thinking positive thoughts and don't worry yourself to much!

Relaxing and writing down what you feel (even if you can't exactly name those feelings) can help you to calm down and control a bit.

It sounds like you're confused about what you're feeling. Taking time to self-reflect can be a huge change; what actions have resulted from your emotions?

Just stop and think of what you have. Keep going don't give up. You have it in you and you can't let it go.

Practice mindfulness, especially meditation. When you clear your mind of all of the distractions of the little things, it becomes easier to experience your emotions in the moment.

You can simply choose to avoid whatever is causing your un-named emotions. If you felt better, then whatever you avoided had to be avoided. But if you felt worse, then get back to that someone or something you avoided.

A short mindfulness body scan exercise helps me to take a moment for myself, without distractions, to discover what I am feeling and allow myself to feel it. Though it felt weird the first couple of times I did this, after a couple of times it felt like a great way to get in touch with myself without being stimulated by the 1000 other things going on around me that I needed to tend to. Some useful downloads can be found here: http://www.freemindfulness.org/download