Is there anyway I can figure out what size ring I wear?
A jeweler will have a key ring with different sizes of plastic rings on it. Try them on until you find the size that fits you best.
Go into a store like ardenes and start trying on rings. When you find a ring that fits check the size of it and thats the size you are
Look up a ring size chart
At home you can measure string, paper, whatever around your finger. In the store they can size you,or bring one of your rings, they can size it.
measure your finger
You can go to the store and ask them to measure your finger and it well tell you