Before I become good at public speaking I had it rough. Always nervous. Having sweaty palms and shaking but I had to overcome it.
How?
✔️ Know your topic
✔️ Get organized
✔️ Practice and practice some more
✔️ Challenge specific worries.
✔️ Visualize your success.
✔️ Do some deep breathing.
Doing all of these will help you to overcome the fear of public speaking.