Don’t drink caffeinated drinks too late in the day.
Use night mode on devices you can; devices without a night mode, figure out a cut-off time after which you absolutely don’t use them.
Set a time in the evening after which you don’t do or discuss anything (house) work related. The last thing you want in the evening is to set your brain abuzz thinking about tasks, or otherwise stress yourself.
Might be a bit extreme, but have a look at light bulbs you use. Just this weekend I put some red bulbs in some lights upstairs so that if I wake up in the night and have to turn the light on, I can avoid turning on the bright lights that’ll wake me right up.
Once you find a routine that works, stick to it. Including at weekends.
If you really can’t get to sleep, accept it’s not working and get out of bed and do something else for a bit. Then try again later.