Before you decided to get any type of spiritual work done it is important to get a spiritual consultation.
This can take place by phone,skype,e-mail. When you are physically sick you go to a doctor and he will give you a consultation to see what is causing your sickness.
A spiritual worker is a spiritual doctor and a spiritual consultation should be done so they can get to the root of the problem that is plaguing you.
Look at a spiritual consultation also to see if that spiritual worker and yourself have a connection. The video below will give you more insight on this topic