Your doctor may need to evaluate the dosage, timing, food habits, injection technique, stress, infection, or lack of exercise if your blood sugar remains uncontrolled even after using NovoRapid and Lantus. Increasing insulin on your own can result in serious periods of low blood sugar, so avoid doing so. Try to take insulin precisely at the recommended time, stay away from sugary drinks and sweets, cut back on excess rice or refined foods, go for regular walks, and periodically check your blood sugar. In order to safely modify the insulin plan and perhaps examine HbA1c, diet, and other health conditions impacting control, it is crucial to see your diabetologist as soon as possible with your blood sugar readings.