if you want to player bishop (healer), make elven elder - you can duo with some mage coz you have clarity+recharge and he can have emp stew, you can AoE coz of recharge (and in case someone stun your tank you can PR), you can make bosses for healing(?) and until 70 there is really not a big difference between EE and BP healing wise, after 70 lvl which is good enough lvl to find CP, you can simply class change to bishop for 20e and thats it, easy time leveling and in the end you play class you wanted.
tl;dr - if you really want to play support, i suggest not going for DD as you will probably quit if you dont enjoy it enough, while above there is solution of getting lvls and playing what you like