Want my posture to improve

Hi I'm Keishi!
I keep a diary to learn English. Thank you for reading!
Please be patient my terrible English. haha
Today, I'll write about my posture.

My posture has been terrible for a long time. Maybe it started when I was an elementary school student. But recently I began to think seriously to improve my posture.

I feel like I can work and study efficiently with a good posture. When I feel I can't concentrate, I always realize my posture is bad these days.

So Improving my posture may lead to a good results. Therefore, I started to do workout to improve my postured. It's to build back muscle.

There are a lot of way to improve a result. I was surprised. I will update this effect some other time.
Thank you for reading!