There is no switch. Truth is, this is hard work, and if it isn't, then you aren't doing it right. My therapist once compared it to a broken knee. It takes a knee a long time to heal. It doesn't matter if you throw a thousand doctors at the problem, it doesn't matter how many Tylenol you take, the knee is going to take as long as it takes to heal. Fixing ourselves is very similar. It takes time, and it takes effort.
What you are essentially changing is your own programming, a lifetime of how your body and mind choose to react to stimuli, and that is no small task. I will tell you this however. It gets easier as you make progress. Once you are able to clear out some of the worst and most damaging thoughts, behaviors and responses, then they no longer stand in the way of future understanding and change.
For me, I started with a simple premise. To be honest, in all things. When I did get the urge to lie or embellish, I did my best to try and catch myself doing it, and then examine that thought process as best I could. Why did I do that? What was I trying to protect or gain? Where did I learn to do that? How would I feel if it was done to me? How do I feel about myself doing that to others? It's like walking through mud at first, and once you really start to honestly catch yourself, it is astounding how often it actually happens.
But each time, I made a new connection. I told myself, "I am not going to lie, because I want to respect myself, and I want to respect others." Over and over and over and over. And after a while, it starts to be the new message. It just does. I still get the urge to avoid the truth sometimes, because I'm human and that's how we operate. But it is no longer "a way of life", and it no longer my "go to response". In fact, my "go to" now is to think of my integrity before my ass. It gets protected first. And I sleep better at night. I feel so much better about myself. It has opened doors for our work in R. And my life is not so miserable (2020 aside).
These are the tools you will need to succeed.