My Political Values

I took the political compass test that was posted on blackboard and it says i am slightly libertarian left. I had a hard time answering some of the questions because i was debating different scenarios in my head. Some questions were easy to answer but others required more thought and a little compromise with myself. I came out fairly close to the middle of the chart and wondered which questions exactly put me where i was on the chart. Was it the questions i could answer right away or the questions that required more debate? Are these questions supposed to be easy to answer? What happens if your dot on the chart is right in the middle? Is there an online quiz that tells me which third party best suits me?