[![Outline of a logo I'm working on](https://i.stack.imgur.com/UlZMQ.jpg)](https://i.stack.imgur.com/UlZMQ.jpg)

I'm trying to fix the inner and outer edges to this outline to make it look cleaner. What tools could I use to do this? I've tried using the brush and eraser tools and just haven't been content with what I'm able to do. Any tips would be greatly appreciated!