To help improve my public speaking joined Toastmasters about 4 years ago.
You work though different tasks such as vocal variety and talking with visual aids etc and your talk is evaluated by another member. All this is done within a time limit and if you reach the green card as above you have reached the minimum amount of time your speech should take, Yellow shows you are half way through and the red card signals you should be at the end of your speech.
In February 2019 I completed my 10 speeches and gained the Competent Communicator award and in June this year I completed the Competent Leader award for successful evaluations and helping other members.