How did it start?

Genuinely, this is the easiest thing. Just gaslight yourself enough until you are okay not getting an answer to your question - just sit with that feeling. Let that lack of answer be the silence - even if it only lasts 10 seconds. Next time see if it lasts longer. When you get stuck, after trying a few times, then ask for help.

Let's face it - as a society we are a bunch of squirrel brained, ADHD, "neurodivergent" people with an addiction to screens and fried through EMF radiation. Let's get the energy out of our bodies first before anything else. Spend an equal amount of time active doing something, before trying to slow the brain down and journal or whatever other practice you are attempting. 

This could be a few times a week for 30 minutes, or as often as 3 times a day for an hour each - it's a practice that you find helps you maintain balance. You have to start somewhere. Whatever the amount you set, it's important to commit that to yourself - that's the only way it improves. The goal is for it to become a normal part of the day where you don't have to "schedule" it...but at first, you have to develop the habit. Just like brushing your teeth.

Share your practice with others by living your life in a way that promotes health. "Mindfulness is contagious" - a phrase from a teacher years back. Be contagious with your practice - not obsessively, don't run around screaming about it - but find other's that want to grow. Being around others who want to learn and better themselves influences not just ourselves, but those we drag along with us - even if they are kicking and screaming at first, they'll probably enjoy it eventually.