Hello there.
I'm really glad that you wrote in to me it sounds as though you are in need of some urgent health care and support. Smoking from a young age can seriously affect your health as you are at an age where your body is still growing and developing, in particular your lungs.
It's not going to be easy to stop and you will need as much support as you can get. I don't know how possible this is but try talking to your boyfriend about how ill you are feeling. Tell him that that you want to get help to stop smoking.
There are websites on how to quit smoking but I think at your young age you may need to go with your mum and see what your local medical care centre can do to help.
Take a look at our information about smoking as there are some useful links that you could take a look at.
You could also take a look at www.smokefree.nhs.uk for some information. I certainly think you will need direct support as soon as you can with this.
Please seek help and take care
Sam