Boi just be confident....i would say don't worry just go for it without even thinking about it....trust me it requires a little practice just a little...just believe in yourself i know this a cliche thing that everyone will say to you but reality is this is the only effective way....you cant avoid it for whole life you have to do it at some point.......trust me go for it once without hesitation and your life will be changed.......i would suggest you a book which i have read 50-60 pages and its an amazing book just give it a try THE 7 HABITS OF HIGHLY EFFECTIVE PEOPLE by stephen covey And also check out.....THE ART OF PUBLIC SPEAKING by Dale Carnegie Take this from me......ITS NEVER TOO LATE TO REDEEM YOURSELF