How to improve my spoken English?

首先，你的这句话就有很多问题。（you sentence is full of mistakes)
I am in Ireland now. But my spoken English is very bad. When I talk with my Irish friends, I feel very hard to say what I want to say

you should say:I am in Ireland now.My english oral is poor and it is hard for me to express my feelings in words when i am chatting with my Irish friends.

my suggestion is that you should look for a tuitor and learn standarded English because your english is really poor.Or you can talk to your friends more and try to find simpler words when apeaking.Personally,i felt it's better if you can find someone who can teach you oral.

Go find a tranquil corner ,and read aloud lots of beautiful passages or assays to yourself,by doing which you get to practise both your speaking and listening.What's more,you know more about your own weakpoints in speaking and thus will eventually find a way out.
By living abroad and doing live practice,you will soon be boasting your