imo pick a tank, preferably chosen / kotbs.
- easy to use, but not uninteresting to play
- usefull in every enviroment of the game (warband, smallscale, PvE)
- doesn't get punished too hard for being out of position
imo DPS is in general a bad choice if you want to be efficient, and playing DPS is all about effiency. you need a good overview in terms of mechanics, target picking etc.
really dangerous to frustrate yourself; if you go MDPS issues getting worse cause you need support from other players (especially an issue if you start alone).
overall they are not easy to learn, but since you said you are mostly alone:
marauder, they also welcome in every enviroment, warband, PvE, smallscale.
mara has a hard rotation if you want to play it 100% right for single target.
AOE is pretty straight forward.
for healers I'd run with Zealot / RP.
Not easy to play at all, but always usefull and imo straight forward to learn at least, they are very close to a "classic healer" as you expect them in any MMO.
highly customizable via tactics, and quite okay as DPS.
No matter what you do or pick:
welcome, enjoy the game, have fun, remember it's only a game and try to find grps and friends, being 100% solo is ruff in the lakes.
