Hi
@keith j donnelly and welcome to the forums.
As the others have said, you need as much as you need, and some people find they need to split the dose.
Can I ask how long you've been diabetic (am assuming T1 since you also posted this question in the T1 forum?) and what help your team have given you on basal testing?
Quite an informative article about levemir here
Levemir is used to help manage blood sugar levels in adults and some children with diabetes. Learn about this drug’s dosage, forms, strength, and more.
www.healthline.com
We aren't allowed to give specific advice on dosing on these forums, but we can give useful links and describe our own experiences.
And my own experience with a different basal (lantus) is that my basal needs can change with time and other factors (including weather, exercise, illness) so you do need to be able to adjust your basal occasionally.