High blood/sugar readings

The Hi,My name is Steve. I am Type 2 Diabetic, I’ve been controlling my diabetic with insulin.Lately,my blood sugar readings have been high.The first reading in the morning is over 300mg/dl The second one after I eat is 260mg/dl. I take later during the day the reading is up to 350mg/dl. After super beforebedtime I take it again, This time it 407ml/dl. The lowest it has been this week is 174ml/dl. I take 50 units of insulin per day. Is this enough