I think on my druid during my 20's i was still grouping.. I was still plenty useful as heals at this level. So i think i was at Unrest maybe during this time? Then basically bounced all around between Mistmoore, Upper Guk, and SolA.. After i wrapped up those zones is when i realized it was time to start soloing..
Just a little something to look over if you haven't seen any guides yet!
https://wiki.project1999.com/Druid_L..._by_Mefdinkins