muddle on
To attempt to proceed or continue doing something despite being unprepared or lacking the required skills, organization, resources, etc. I forgot my notes for the presentation, so I just had to muddle on off the top of my head. The company fell into disarray after the CEO was arrested, but we've been muddling on ever since.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.