You’ve already got some top-notch ideas from Georgia and Tracy! 
If I can add a few more potential ideas onto the pile, the lines looked similar to an Ogham card Megan drew in the Weekend Divination thread:
Picture by @MeganB: Ogham Dair/Oak
Not sure how the circle fits in there, though. A leaf at the base of a tree, perhaps? A rabbit hole, like in Alice and Wonderland? Hmm 
With a creative eye, looking at what you’ve drawn, I saw a golf flag marking a hole on the course 
A goal, perhaps? Something to work towards and aim for?
Just a few extra thoughts on the table! Whatever meaning the symbol holds for you, I hope you’ll be able to figure out its message 
Good luck and blessed be!