Making parts is a complex process and if you only need a small number of parts you are probably better to ask someone to make them for you. The place to start is a google search of the form “fritzing part part_name” (where part_name is the description or model number of what you want) which will find already existing parts. That said these two tutorials apply to current versions of Frtizing
I lately learned there aren’t links to the videos in Old_Grey’s tutorial so you need to do a google search for the title and then they come up on YouTube.
Peter