If there is one bit of information I can recommend to The Memory Hack Review you, it would be that quickly jumping from one type of treatment or help to another without successfully completing the one before it will not help you much, if at all. Even if a great treatment was among the ones you tried, a good answer likely would not have been found. This is because your mind did not have the time necessary to change. You need to stick with one program at a time, from start to finish or you risk letting your Obsessive Compulsive Disorder go unchecked.
I'd also to like to note that regardless of how effective any given method is, you will not be cured overnight. No matter how professional the individual helping you is, curing your Obsessive Compulsive Disorder habits is a medium to long-term goal. You need to be able to remain patient, and utilize the treatment one section at a time. Very little good, if any, will come of trying to rush things along. If you are serious about ridding your mind of OCD, with lifelong results and without the use of medications, patience is a very valuable and helpful tool.
Another great asset to utilize is focus. It's important that you refrain from seeing multiple therapists or advisors at a time. Although patience and mental focus are very valuable tools in the human system, using them on multiple methods during the same time will very likely block you from reaching your goal. Locate the best course of treatment available to you, and utilize it FULLY until its course has been completely run. Do this and you will be pleased with the results; Living more peacefully, with no more worries from Obsessive Compulsive Disorder.