Sorry about your Dad and it sounds like a reasonable plan, except for the part about not playing. I do think you need to play regularly to reinforce whatever lessons you have learned.
I also think you should add your post to the old thread since many people track threads and you might get a bunch of reads and responses as a result.
Lastly, I caution you about revealing such personal details about your life here. Some people may not be kind, to put it mildly.
Someone asked a similar question before, old thread and I decided to share my outlook.
To make the long story short, I realized (after my dad's passing last year) that life and chess is about balance. I am no longer driven by ego but rather by curiosity and interest, and I feel like I'm doing better than before - both in life and in chess. So taking it easy, doing a little bit of studying chess every day (I purchased Gold Premium membership that allows me to study 3 Chess Mentor lessons and do up to 25 puzzles a day) is the best way for me. I avoid playing the whole game not to perpetuate my mistakes. Instead, I play positions against the computer to reinforce what I did learn.