Stretch and exercise. The little thing that will help you.
It was a user from this sub under the name of u/q03o that made a post a while ago recommending us to massage our jaw. I just wanna give my thanks to him. Although I didn't practice jaw massage, the post reminds me to pick up stretching as a habit. It has been a week since I started, I've feel quite the improvement to my body. What I feel the most is feeling fresh right out of bed. I stretch before sleep and after. It's a trick so I don't make up excuses to avoid it.
I started accompanying my morning with light exercise too. A set of push up and squat is a good starting point. I'm incorporating this slow, as slow as possible to not overwhelm myself with changes. I kept dropping habits due to that reason. I figure that for this one, I shouldn't abandon.