You have to be patient.
Lantus doses are adjusted based on the nadir, the lowest glucose post-shot.
Plus, with the Tight Regulation protocol, the same dose needs to be held for a minimum of 2 days (4 shots) when the glucose levels are extremely high, 3 full days (6 shots) for moderate glucose levels.
For the Start Low, Go Slow protocol, the dose is held at least a week and a curve run on the weekend to determine if the dose needs adjusting.