Gleason 6 is about as low as it gets at the point of diagnosis, so it sounds like it has been caught early. You probably won't be put on to an active treatment path while everything appears to be stable, but the surveillance will continue.
If you do proceed to treatment it will probably take the form of hormone therapy (ADT) and either radiotherapy or surgery. As these treatments both have quality of life implications, they wouldn't be started any earlier than necessary. Given your relatively young age, it is quite likely that you will move from surveillance to treatment at some point (if you were older, PCa may not advance to the point where it became a threat).
Your condition is one that would be expected to be curable.