i want avail tips for speaking fluent english with correct prnounciation

i m anand from india and within next 2months I will be flying to usa for my studies but i m havin a great fear inside me as i am unable to speak fluent english and I am always searching for the words while speaking. This really turns me to face great insult.So kindly suggest me methods to improve my fluency in english.

Anand Jain