I would do what you told me not to let me go with you in England, because right now I'm studying hypnosis and will finish next year. I don't know what the future will be like, I understand.
I did what you told me I was not about to let me go with you to England because now I am in graduate school and will graduate next year. I do not know what the future is. Please understand me.
I will do what you tell me not to let me go with you in England because now I'm studying master and will end next year. I don't know what will happen in the future. Please understand me.