If you do STICK TO IT
Exactly, Planning isn't the problem, but staying on course is a new story. And I end up throwing away the plan.

I think I tried the night routine stuff about a decade back and it worked that time. Dont know why I stopped but maybe I should go back and try to be in that routine. The biggest problem is still the work. Not being able to leave on time or not being able to say no to myself.
🙁
If the plan isn't working that's fine but come up with another one that will work and then adjust it as you need to. Throwing it out does tell us that you think it's easier to stick to old habits even if they're completely not working out for you because making new ones is very hard work that nobody wants to do :)
If you're anything like me you may have been desperate for more time and that was the only thing you could get more time from. Just try again :D
That could be part of the timeblocking thing (finish your last task and freaking STOP no matter what). You're the only one that can help you with that though :)