Glad to see we are being helpful
@elatengam. One thing to bear in mind is that things can be a bit fuzzy when taking blood glucose measurements. You can eat exactly the same thing as far as you are concerned but end up with what appear to be different results. That's because blood glucose variation is not an exact science. Take your time, don't panic, do a few repeats and you will sort out general trends.
What I suggest (I used to be an experimental scientist) is you get your self a note book and for your breakfasts note down exactly what you eat and take a measurement immediately before you start and then another measurement a fixed time afterwards. As has been suggested above most would suggest a couple of hours. Do this for a few days, eating the same breakfast, and you will get an idea of the effect that particular breakfast has on your blood glucose. Then try something else for a few days and see what the effect that has. Maybe move from a wheat based cereal to one that is oat based. That way you can begin to get some indication of what things your system is finding most difficult to cope with, make deliberate changes to eliminate those things, and check to make sure your changes are working.
I did that sort of thing and finished up with this as my boringly standard breakfast...
Cereal - 30g or so of home made granola, toasted oats with nuts and seeds eaten with plain full fat Greek yoghourt and a drop of milk. Make my own because commercial stuff tends to contain dried fruit (gives a big jump in blood glucose) and a far higher proportion of cereal to nuts and seeds. Total of about 20g carbohydrate.
Toast and marmalade - slice of low carb bread toasted (wheat content of standard breads gives a big jump in blood glucose) and my own marmalade (much more flavour than shop stuff and so I need the tiniest amount to taste it). Total of about 10g carbohydrate.
Big cup of tea. No carbohydrate to speak of.
I expect that breakfast to give me a 2 hour rise of between 1 and 2 units on my meter and I am happy with that. If I test after one hour I might see a 4 unit rise but I don't panic. My system is producing glucose faster than my pancreas can deal with but I know that it will cope eventually and be down around my base line by lunch time.
After a while you will be able to sort out what works for you.