Having reduced my phone screen time, I now spend hours on my laptop. Any advice on a good work/life balance with a work laptop?

I work 9-5 (and sometimes overtime) on a work laptop. Now that I have begun to reduce my phone screen time, I am feeling better but find I am also just looking at the apps and websites I had blocked on my phone by opening them on my laptop instead. Ideally, I would leave my laptop at the office overnight but I have to be available out of hours during busy times. Additionally, I enjoy creative writing and researching in my spare time, so would want a laptop in my leisure time to do that with. How can I successfully manage my use of social media/streaming services on my laptop without just leaving it in the office out of hours? Any tips/tricks are welcome!