There are many, many ways.
I started with what is called “Meta” meditations. Kristen Kneff has some great ones. Basically you offer good thoughts to the world, and then turn it around to yourself. I did this on repeat, daily, to learn to be comfortable with giving myself self-love. That is usually the first self-limiting belief hurdle.
Next I made a list of my conscious self-limiting beliefs, and then I began to slowly work through the list with another column of why these things were not true. Eventually I got to a few really core elements. Then I used EFT. There are many EFT free guides on YouTube like Tapping With Brad who deal with these beliefs. Eventually I learned to use his method of scripting to come up with my own “scripts” to challenge and reprogram these beliefs. This has worked well for me, personally.
Others simply use very long meditations which teaches you to separate yourself from thoughts for awhile. Over time, this really works for some folks.
Frankly, it’s a pretty similar method to doing internal TMS work because it’s so related. The SEP will guide you through methods you can use to challenge many of those beliefs. Thru are simply defense mechanisms, which is what the pain or physical symptoms and anxiety are as well. With time and patience, these things pass.