TOEFL test - OMG!!!!

I was considered ing to doing the TOEFL test this year.
I am thinking in of applying for a scholarship in a British University next year.
I have never heard about this test, and when I looked for about into this, I got really scared! oO
It is a very difficult test (and expensive too ) I do not know if I am prepared to do it.
This test requires four skills: listening, reading, writing and speaking.
I am worried with about the listening and writing. These are my weakness in English. Sometimes I do not understand what people say, and when I have to write, oh Gosh, it is terrible ( as you can see, haha)
Probably I am probably going to write here every week to practise.
For while now that is all, bye :)