Can you tell me is it bad to start taking abilify(10mg) and sertraline (50mg) in the same night?

Yes and No: While I do not think it is 'bad' to start treatment with both agents simultaneously, it may make determining outcome a little confusing. Would you have improved on sertraline alone? Hard to tell. In addition, i would prefer starting with a lower dose of Abilify (aripiprazole) if i was using it as an augmenting agent. However, if used as a mood stabilizer or antipsychotic, this dose would be appropriate.