As EDUAD said, if you are missing meals and your sugars are rising then you most like don't have enough basal insulin onboard.
It took a while and it's not foolproof but I managed to get my basal sorted and now my glucose levels (under normal circumstances) barely change if I skip meals or eat at random times. Of course little things like change in activity levels / illness / buggering up previous meals bolus throw that all out the window!
It's worth a bit of effort to et the dose right though