Glad to have you on the mend. That must have been hell to go through.
3 years ago, I fractured my L2 when I hit a curb on my motorcycle, and, if I had tried to stand up, I would have been paralyzed below the waist. My L2 was "exploded", according to the orthopedic surgeon. I was in critical care for a week post surgery, and at a rehab hospital for a month. Had to learn to sit up, roll over in bed, stand, and walk all over again. I went from having absolutely zero strength to riding 100-150 miles a week almost year round. I have a bit less flexibility due to the spinal fusion, but all in all, I'll take my lot.
Having gone through a long-term rehab myself - hang in there - you'll have good days and bad days, but if you keep pushing at it (SLOWLY), you'll get better.
Keep that goal in front of you - I'm definitely pulling for you. Hang tough, and get well.
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2020 Giant Defy 2
Fuji Cross Pro
Scattante 650-R trainer bike
'06 Kona Jake the Snake