When I came to fritzing 3 or 4 years ago, asking in here was how you learned to make parts. To some large extent that is still true, but here are two sets of tutorials that explain making parts with the current Fritzing version (most others are for older versions:
I will give fair warning that I don’t find parts editor particularly useful and don’t use it, Old_Grey did use parts editor (but has I think moved to Kicad and no longer posts here.) If things are unclear in my set, please post and I’ll try and fix them.