Yes, wazifa is halal if you are doing it under the circle of Islam. I already have given some references about is wazifa hala. Also, asking for help from Allah for the right purpose is always halal.
In addition, wazifa is halal if there are no Shirk words include because some wazifa may not from Quran but maybe in the Arabic language and they may have Shirkia words means asking help rather than Allah or considering someone above or equal to Allah. Then it is absolutely haram. You should stop it right away and find another solution for your problem.
Moreover, Molana Shaheen has explained well Is wazifa haram.