I would strongly recommend the addition of getting up from the chair every 20 minutes or so and walking a little, maybe doing a few pushups from time to time too.
The blood circulation of the vein, is based partly on the movement of the leg muscle and it will prevent clots and keep your blood flowing healthily.
You may also decide that you dedicated some time in your schedule to some unimportant and fun activity, it will make the process much more fun - just like body builder usually allow themselves one tasty and not so healthy meal a week.
Happy and fun learning to all of us! thanks for the tips @cryptoctopus!