MacBook Pro 2016: slow and hot

Hey everyone. I’m still using my MacBook Pro 2016 (8GB ram) almost everyday. It’s 8 years old and I never had a problem. It’s still great for browsing, docs and light stuff. As you can see in the pictures, I took care of it and it’s extremely well conserved. It looks like new.

I didn’t consider changing it until now, that I have started a postgraduate program.

When I have too many tabs opened or I’m multitasking it gets slow and extremely hot. The battery now only lasts 2:00/2:30 hours. So after 8 years I might need to change it. I know I could be using it until it’s 10 years old if I used it only for browsing and streaming but not for powerful tasks.

Do you think is a good time to change it? Should I wait? I was thinking about getting the MacBook Air M3 (16GB). Is it worth?