Can I fix a nitrogen deficiency with more terra tripart nutrients or do I need something else?

With the way the yellow/pale is moving I would say it looks more like potassium than nitrogen to me. You don’t need any other product aside from what you have. You can increase the bloom nutes a bit. I definitely wouldn’t start increasing the amount of nitrogen you’re using in flower though. it seems like you’re already using pretty much correct ratios as is so I’d increase just gradually in the bloom nutes and see how she responds