Hell no - unless something is on fire, I try not to be online or thinking about work outside of weekdays 9am-6pm. I’m also done taking exams, which makes a huge difference. It sounds like you need to figure out a way to be less mentally drained throughout the week, whether that’s taking more frequent breaks, finding particular activities to help destress, adding more physical activity throughout the day, etc. If there’s too much on your plate at work, you should talk to your manager/team about that. Studying while working full time sucks full stop, so be gentle with yourself and set realistic goals on what you can get done. Maybe try to break up your study material into super bite-sized chunks that you can do in 30 min intervals any time throughout the week, and reward yourself with something fun or that gives you a little bit of joy for each chunk you finish.