Confused and Concerned

Hello! I (26F) just found this community and wanted to ask some questions. I received spinal fusion at 16. I don't know the specific length but it started at the top of my back, down to part of my lumbar because of severe scoliosis. I was relatively active (e.g., was a dancer) so healing went smoothly resulting in no adverse outcomes outside of some flexibility constraints (had to quit dance). Since, I haven't really thought about my surgery. Lately I don't know how to describe it but I "feel" my spine. It's a sort of light numbness depending on my sitting position which could be due to me just getting into regular yoga lessons. That being said, I have never spoken to people who have had this procedure so I have a few questions for this sub:

1. Do others participate in yoga/intense workout routines? Or is this considered high risk for later complications?

2. I see that people in this sub discuss being on disability after having follow up procedures (my heart breaks for y'all). How does this happen?

3. Are there differences in hardware/surgical technique? Or are the procedures usually standardized?

4. Am I inevitably going to experience eventual complications or pain that disrupts my quality of life down the line?

Sorry if some of these questions seem insensitive. I am just concerned after reading some of these threads. I have never really considered what 10-20 years in the future might look like.