You can also try monitoring your HGT (blood sugar by glucometer at home).
You should monitor above values on your regular insulin
dose, so that it will be easier to pinpoint the highs and lows. Accordingly, insulin dosages could be adjusted.
Thrice a day insulin is more suitable for most of the type1 diabetics.
Tablets like Acarbose
will prevent rapid rise in post meal blood glucose
Infections can cause blood glucose variations.
More than 8 hba1c
shows, your last 3 mons glucose control wasn't that good.
My advice - Get admitted under a good diabetologist/endocrinologist/physician who would readjust your insulin dosages after proper monitoring.
Hope this helps.