One thing you should know. Every enlistment is an eight year enlistment. It could be four years active and 4 years inactive or how ever you decide to split it up. If you go officer later after joining as an enlisted that is a new eight year enlistment minimum.
I think being enlisted and then becoming an officer is awesome. But if you already have a degree and are thinking about becoming an officer just do it and save yourself some time.
Honestly, if you hate being an officer you can always resign your commission and go to the enlisted side. You're not stuck there for ever if it's not for you. It might sound stupid and very few people do that but it does happen occasionally. It's not a decision you have to live with for the rest of your life if you change your mind.