What is the best way to make the charactor ‘c’?
I was thinking of using readily available ‘o’ charactor and cutting out part of the ring but I don’t see any eraser 
I know I can use ‘insert contour’ but I can’t draw a decent circle to begin with. 
You need tojoin the inside and outside contours of your ‘o’ to make a ‘c’, I would suggest having a point at the farthest right edge of each of the contours that you could join at. Remember that FCP is not a drawing tool, it is a vector graphics tool, and you need to work within that framework. After you have joined the contours, you need to pare back the points and create your terminals. It really took me about a month to really figure out what I was going to do with my Cs and related glyphs. On the other hand, you may have a good artistic vision right now, and just need to play around with contour vector controls to get familiar with this unique form of art. Good luck.
Yes, it works, after shift clicking two points and join them. Thank you very much. This is just what I needed.