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It isn't feasible. The secret common to every balanced, healthy full-time creative I've met is that they need to fill up the hours with a bit of technical study to stay up to date, plus things that give them creative energy - not strict time-on-task to a project goal(which can happen in spurts). These are neither strictly productive nor consumptive things, and mundane effort on housekeeping, long walks or journaling can be as restorative as anything else.

So if your day job is using what you've got, I'd say, hang in there. Sometimes you can make it work by switching mediums in the off-hours. A habit I've gotten into recently is to use the voice recording on my phone to journal as I take a walk. Those recordings, usually 10-20 minutes in length, are less technical, less polished and reviewable by their nature, which puts them in that "first draft mode" that is good for pushing forward with a creative goal and to have an intense, vulnerable conversation with myself without putting on the filters as I might by tapping it out on the screen.