Yay, welcome to the antipsychotics club! I take Seroquel too, it always makes me really sleepy and I get just suuuuuper weird dreams from it, I pretty much dream enought for a whole life time every night, it's funny.
My doc gave me seroquel to make me somewhat calmer, however, the most common anti anxiety meds are benzodiazepines like xanax, but you have to me super careful with this stuff because you can get a physical dependence on them.
Wellbutrin is an interesting medication, it's an amphetamine like antidepressant which acts as a dopamine noradrenaline reuptake inhibitor. I'd say you should maybe try to eat more food containing phenylalanine and tyrosine, because your body needs these amino acids to produce dopamine and noradrenaline. You can also buy these as food suppliments too, maybe you could talk with a doctor about that.