Hi
@Jenny_B_
My understanding is that you need to get your basal right first before tackling the bolus. This could take a while if you are on tresiba, as it's so long acting. Bear in mind that you need the morning reading to be the same as the night time one after bolus and food is out of your system.
As you're a carb counter you should find it easy to keep a good carb/insulin/bg diary which will be of enormous help to your team should they want to help you calculate your ratios.
Do you have a correction ratio for bolus to bring your bg down if it starts too high/low eg 1 unit for 2mmol/L