How often do I need to have sessions

This depends on how your brain has stored the information.

If you continue to rehearse a memory over and over, you will have laid down more neural pathways than if it happened once and you don't think of it again.

One thing is certain, every session will have memorable changes.

I recommend 3-6 sessions for powerful change.  Sometimes it takes less, sometimes it takes more.

We are all unique in how we are invested in our problems.  Like going to the gym to build strength, fitness and endurance.  We need to commit to our wellness journey if we want to see positive results.