How to balance time between a full time job and dissertation work (leave the school work for weekends or every day after work)?

I "finished" a master's in software engineering while working full time as a java developer (got the job right after college, the same time I started the master's). During the regular curriculum I only attended the labs which were over 6:00 PM, or in the morning at 8:00 AM. So attending the laboratories consumed like a maximum of 10 (because sometime I skipped classes) hours per week and some of the homeworks were done in weekends. The only thing that is left now is the dissertation, now that I do not have a strict schedule and I can make my own schedule I am trying to find a better strategy to balance time. My thesis is in the field of machine learning, I am not very proficient in this field so I spent a lot of time till now reading things and making sure that my ML knowledge is at the right level.

What would be a better strategy, to allocate like 2-3 hours after work for work at the dissertation or to "compress" all the (dissertation) work for weekends (like 10h per weekend day)?

The main advantage of working over the weekends would be that you do not loose momentum, in 1 hour I enter the rhythm, I think you can be more productive from this side. The disadvantage would be that the motivation may be lower because during the work week there that vibe of everyone is working (I know this is a poor excuse).

Then there is the problem of getting rid of the stress accumulated during the work week, usually I use the whole sunday for this. Will it be effective to work 9-10h (my boss forces me to do overtime now, if not I will be fired... ) a day from monday to friday and allocate 2-3 hours for detaching activities? Will this get rid of the need for a whole sunday to detach stress? (I know it depends)