The target dose for Abilify varies considerably depending on what is being treated. For bipolar 1 (if you have ever had a manic episode) and schizophrenia it is probably 15 - 25 mg. For bipolar 2 and augmentation of an antidepressant for someone with non-bipolar depression it is probably 2 to 10 mg.
Also, how long to wait to see the effect depends on what is being treated, for psychosis or mania I would expect results in no more than a week at any given dose. For depression I would wait between 2 and 4 weeks depending on how urgently you need to see results (there is always a trade off between needing results fast and the possibility of overshooting the optimal dose... if you need results fast you may go up faster than would ordinarily be desirable).
As you titrate upward watch for the emergence or reemergence of a sense of being "flat" or apathetic, as that might mean that the dose is too high.
Sorry, I should have put that I was fairly severe rapid cycling bipolar 2. Some paranoid features but not quite to the level of mania. Medication controls things pretty well but if I get too much stress I start to destabilize. Because of that and the tiredness of the meds I can only work part time.
Thank you for your reply. I don't want to end up flattened but I don't want to become overwhelmed by emotions either. I will wait longer to see how the depression plays itself out. I go and see my therapist on Friday so I can ask her opinion too.