how to gain confidence

now this is something that I have non of but I am working on it and these tips help…OK so let’s start:
1. think of confidence as a muscle you need to work out a lot to keep a muscle in shape well same goes for confidence
2. do something out of your comfort zone everyday
3. start saying hi to your crush
4. answer more questions in the class
5. do more public speaking
6. volunteer to read in class