My name's Inna. I'm 26. I'm from Ukraine(beautiful country near Russia) We're famous for our brothers Klichko & Yulia Timoshenko

The problem's that my English isn't good. I can understand English speaking people, can read and translate, but...I can't speak and write without mistakes!
This summer I was in Austria and got some practice. Most of people speak good English there. I've got the invitation for the next year! So, I must improve my English! Could you help me?
Best regards from Ukraine.