You do not have enough.
Have you ever used a file to sharpen an ax to split wood1? That is easy compared to the fine edge you need to cut thread, hair or a beard. Much less two edges for scissors upon cloth.
The blades pictured above are immensely sharp and practically free. You should buy a bunch of them ASAP for your kit. This is a well solved problem so take advantage of it.
1
It is opposite of what you see on TV, you work from the blade edge toward the root. Not everyone has the fortune of obsidian at hand.