It's very hard to be perfect..... aren't you agree?

i have diabetes since 1998, when i was 14… my doctor told me that “diabetes is not a problem if you can manage you blood sugar”… then he recommend me to take a medical school later and be a doctor… so i can understand everything about diabetes…
now, i almost graduate from my medicine school for the GP’s degree and i’m very enthusiastic to learn anything about diabetes… but after all… i still have my blood sugar rising sometimes… and i fell that all knowledge that i know about managing diabetes is not enough to take care my blood sugar… ugh… it’s very hard to be dicipline even that i know exactly the complication i will deal later…