It looks like you've used the skater update scale, and not the goalie scale. I've taken a quick look back at the edit history - it looks like you had it right when you said your math was wrong. I've gone off that post to update your stats:
Blocker: 12 -> 14 (23 TPE)
Glove: 12 -> 15 (38 TPE)
Recovery: 12 -> 13 (8 TPE)
Low Shots: 12 -> 14 (23 TPE)
Reflexes: 12 -> 13 (8 TPE)
Mental Toughness: 12 -> 13 (8 TPE)
Goaltender Stamina: 10 -> 13 (18 TPE)

The Stamina change actually costs 21 TPE, so you only have 25 banked.

You are at 336 spent currently, so you can spend 14 more before reaching the 350 TPE cap.

Updated!