Fey foundling (feat): It may be taken only at first level (you may convince your GM to retrain your first feat (on the side note, shouldn't humans have 5 feats by level 7? I can count only 4)), but it improves the healing on you. Since you can move the damage from the party to you, you can save some resources.
Dual cursed oracle: Get a second curse which doesn't not improve with time, but you get more revelations and you can get the fantastic misfortune revelation (as an immediate action you can force a reroll on anyone in 30 ft. It works once per creature/PC, with a refresh of 24 hours).
Spells in general: You have a nice charisma, which while is not stellar, gives you some chance to be a battlefield controller. Choose spells that target many opponents; perhaps once in a while you'll get the job done. You also get some good buff spells (next level pick Blessing of Fervor. It's just fantastic). Summoning is also fine. Don't take the blasting route; it's terrible. You are better at summoning stuff that blast than just blasting.