I finally found the strategy to rid myself of social media addiction:
1. Uninstall apps I rarely use. (I didn't delete but merely uninstalled Pinterest, FB and IG. I do make purchases at Shopee but uninstalled it because I found Lazada courier service better).
2. Create an "Others" folder then move those not very important apps here. (In fact, I compartmentalize 2 other folders: Tools and Bills to better manage shortcuts.)
Eventually, I didn't need a secondary screen to house other app shortcuts so that made things more convenient. Since then, there is less urge to pick up the handphone to check latest feedbacks and reply. I only maintain TikTok because it offers up-to-date news. My head now feels much lighter.