All tenses

Today I want to improve my English.
At the moment I am writing onin English.
Last year I learned a lot of new words.
I also learned a bit of English by traveling and talking to people in Croatia.
I have just eaten a pizza.
I have been eating an apple all day.
I hadve written entrys every month.
I had been eating when I won the World Cup.
I will learn a new language in the future.
I'm going to get my A-levels in 2014.
I will have run 5km by tomorrow.

Great Job! Just made a few small corrections, but overall you've used some quite advanced verbial tenses!  Also, I am a English teacher for italki, so please see my profile if you are interested!