P220 128GB SSD

I am using a new P220 as a boot disk for a TrueNAS system. I replaced an old worn out SanDisk that had finally reached end of life. A question has arisen re how quickly the drive is wearing out and which SMART attributes are most relavent to the question, and how they should be interpreted. The drive in question is showing:

SMART Attributes Data Structure revision number: 20
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x1300   100   100   050    Old_age   Offline      -       0
  9 Power_On_Hours          0x1200   100   100   000    Old_age   Offline      -       718
 12 Power_Cycle_Count       0x1200   100   100   000    Old_age   Offline      -       6
167 Unknown_Attribute       0x2200   100   100   000    Old_age   Offline      -       0
168 Unknown_Attribute       0x1200   100   100   000    Old_age   Offline      -       0
169 Unknown_Attribute       0x1300   100   100   010    Old_age   Offline      -       131076
173 Unknown_Attribute       0x1200   200   200   000    Old_age   Offline      -       8605794419
175 Program_Fail_Count_Chip 0x2200   100   100   010    Old_age   Offline      -       0
180 Unused_Rsvd_Blk_Cnt_Tot 0x3300   100   100   000    Old_age   Offline      -       60
192 Power-Off_Retract_Count 0x1200   100   100   000    Old_age   Offline      -       4
194 Temperature_Celsius     0x2200   028   028   000    Old_age   Offline      -       28 (Min/Max 15/44)
231 Unknown_SSD_Attribute   0x2300   097   097   005    Old_age   Offline      -       3
233 Media_Wearout_Indicator 0x2300   100   100   000    Old_age   Offline      -       6831
234 Unknown_Attribute       0x3200   100   100   005    Old_age   Offline      -       1245338
241 Total_LBAs_Written      0x3200   100   100   000    Old_age   Offline      -       3549
242 Total_LBAs_Read         0x3200   100   100   000    Old_age   Offline      -       124

Which of these stats is most relavent when looking at lifetime left on the drive?

233 - Media_Wearout_Indicator has a RAW_VALUE which one program I have is interpreting as 85% left (or 15% wear).

231 - is sometimes used, it says unknown but is showing 97% down from 100% a month ago in the Value field, implying 3%

Any thoughts?

I am not complaining about the drive, its QLC and is being continually written to so I am not expecting miracles. If it is wearing this quickly (15% a month) I will have to replace it sooner than planned - and I like to be prepared