Your boluses are correcting your blood sugar immediately after meals but your blood sugar still keeps drifting upwards. The overall pattern indicates that your basal rate is too low. You should do a basal test or a few basal tests. Then once you have your basal completely right, you will most likely need to reduce your boluses, which at the moment appear to be compensating for the inadequate level of your basal.
That's what it looks like. But only proper basal testing will reveal whether it is true or not.