Hello Boozuka, and welcome to our server!
If you still have the old starter gear, and have not obtained a new set on that character, you can go back to the NPC which gives it in the starter zones (Logar, Elven Island, Yrvandis Hollows) and obtain a new set (make sure to be on the class you want your new gear to be for, because the NPC will give you a set according to the main class you are on).
New players are always recommended to find a guild that can help them on the way, it's the easiest and quickest way to become familiar with the game, the instances, tactics and also the quickest way to gear up.
Druid/Rogue is definitely a fun class! I've played it a lot myself and still do sometimes, it is not the best DPS out there but it doesn't have to be, to be fun!
Due to the healing reducement on Druid/Rogue's main damage buff, I personally think it does make sense to gear up as a mage rather than a healer.
If you have any more questions, feel free to ask anyone on here or in-game, we're all happy to help!
~ Alke