1.I have been learning English for 6 years,since I was 6 years old at a primary school.
2.I think it is normally because sometimes I don't know a difficult questions so it is normal to me.
3.I would like to use English to travel or for work in the future.
4.I find English is quite difficult because it is not difficult when you are interested in it and when you are love it,you will become a master English speaker.So do I.
5.I think it is the structure,the structure is difficult because there are too much structure in English and I can't remember all of it.