I've found this book (https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...), at least the earlier stages to be quite helpful in regaining control of my thoughts.
https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...
If you’re already doing therapy, consider complementing it with meditation. Meditation, if done right, can be equivalent to years of therapy.
The benefits are great, and for your situation the most relevant are reduced/eliminated anxiety, more willpower, energy, clarity (to see through depression for example); but there many others.
However, there’s a catch: meditation is hard. It requires consistent effort and dedication, just like any practice involving a complex skill (e.g., going to the gym or swimming pool).
For a completely secular practice, I’d recommend “The Mind Illuminated” by John Yates [1], a neuroscientist and a master meditator, whose aim with the book was to create a modern manual for meditation by making old Buddhist teachings accessible to an average westerner. The book is a synthesis of those teachings complemented with both his experience as a master meditator /and/ as a neuroscience Ph.D. This means that along with detailed instructions on how to actually meditate the book contains theoretic chapters explaining in popular scientific terms how your brain works and what meditation has to do with it, by first introducing a simple model, and then gradually building upon it as you progress through the book and develop your skill.
[1] https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...
There are tons of books and meditation courses. It depends what suits your style. eg, The Mind Illuminated https://www.amazon.com/Mind-Illuminated-Meditation-Integrati... is the most popular meditation book right now. There is even a subreddit dedicated to it. However, it is quite the read, guiding as one progresses, mirroring how a teacher would do it.
Culadasa, who made The Mind Illuminated, is working on another book that goes over the second topic I was diving into (like Noting Meditation). It is incomplete with no eta. It would be a 102 book for after one finishes The Mind Illuminated.
There are other resources on the second topic, but right now both topics are ideally taught with a teacher, especially the second topic, so progress can be aided and verified.
What goal do you have? I can possibly write a skinny as to what to look at and where to go to achieve that goal, including providing more resources.
Also, just in case you do not know CBT, with a good therapist, is, I believe, the only kind of therapy that works well on depression. CBT takes from the techniques in the topics above, and then boils them down into a light version that can be worked through at an accelerated rate.
It's really simple to start out:
1) Devote 10 minutes of each day to meditation time. Early morning is best, as your mind is fresh and not as distracted.
2) Find a quiet/non-distracting place to sit in a comfortable position. Legs crossed on the floor or in a chair are fine. You want to keep your back straight to help keep from falling asleep.
3) Focus on the sensation of your breath, wherever it is strongest. Typically this is the tip of the nose, or in the nostril, but chest can work as well. Your mind will become distracted with work, worries, thoughts of food, etc. When this happens, congratulate yourself on noticing that it happened, and bring your attention back to your breath.
That's it! It blows my mind how developing concentration can have such a profound impact on your life.
Here are some good resources for those interested:
http://dharmatreasure.org/wp-content/uploads/beginning-medit...
https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...
https://www.reddit.com/r/TheMindIlluminated/wiki/index#wiki_...
The book is called The Mind Illuminated, and is an absolutely fantastic book on meditation. Super cheap too: https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...
Short book on meditation: https://www.amazon.com/Sit-Like-Buddha-Pocket-Meditation/dp/...
Longer book: https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...
Also, try some guidelines to help you choose more intentionally when and how to analyze things. Is it no topic is worth thinking through all outcomes? Or, important topics are worth it, and they are x, y and z? Or, I can do that type of thinking only an hour a day, from 7-8pm? Once a week? A therapist and trial and error can help you figure out what works for you.
Have a counterfactual behavior that you'll do when you notice you're analyzing when you didn't intend to. E.g. if I notice I'm thinking through scenarios, I'll acknowledge that, then focus on my breath.
- Getting easily distracted is normal. Don't set a goal of never getting distracted: it's unrealistic and counterproductive. I've spent hundreds of hours meditating, and still get distracted (albeit more briefly). Instead, feel good when you notice you're distracted. The goal is to train yourself to notice and return to the sensation sooner, with positive feedback.
- Don't try to block out everything except what you're meditating on. That should be your main focus, but you should let yourself be aware of other things in the background.
The Mind Illuminated has some good practical advice in the early chapters. I can't vouch for the later chapters. https://www.amazon.com/Mind-Illuminated-Meditation-Integrati...