I'm so nervous during presentations and meetings, how can I improve my public speaking?

Rehearsal and practice will lend themselves a long way. If you have a friend to practice your presentation this would be ideal.

Practice Practice Practice. There is no other way around it. Without practice, you can't get the experience you need. Try with people you are comfortable with. Then move on to people you know less well.

Try speaking to yourself in front of the mirror and then try your presentation out on your family or friends. They can give you feedback and helpful suggestions.

Start off talking to a mirror. Sounds weird, I know, but watch yourself as you do it. This well help you kind of see what other people will be seeing. And you're seeing yourself, so no big deal right? Then, ask your parents or siblings if you can present your project to them. If they're not available, see if you can get some friends together. This will help you prepare for presenting in front of a group. After all that, you should feel comfortable presenting in public.

Realize that whatever presentation you're in is not the end of the world. Also, there is a wonderful technique one can use: Make the "Hmmm" sound a few times with a high pitch. If you can't get away to a private place to do it, pretend like you're blowing your nose.

Always prepare, even if this means reciting in front of a mirror or close friends. You will feel more confident when the time comes

Think if what you are spreaking of. Imerse yourself in this to lower the stress. Calmly going about it as if the subject is positive to.you.

practice practice practice... better practice in front of a mirror and practice speaking loudly it brings a great change. be confident, be thorough.

Make sure you know your material really well and practice as much as you can, whether it's in front of a mirror, in front of your pets, or to your friends and family that feel comfortable around and who will give you honest feedback.

Imagine the presentation going above average. Most of the time our nervousness is caused by a deep underlying fear that we will fail, get rid of this idea and replace it with a positive idea, and the nervousness should subside.