Should you want help in setting Bitwarden up, a free service is available. Contact wvcomputerclub@gmail.com for more information.
If you would like to set Bitwarden up yourself but need some explanations, see the Bitwarden videos and presentations. The intention behind these resources is that viewing the videos in the numbered sequence will give a beginner a good understanding. However, a person with more advanced understanding may choose to pick specific material.