on the right track
1.acting or thinking in a way that is likely to result in success
Following this context, if you were on the wrong track, you would be heading toward failure.
The saying applies to any situation that ends in a:
- Destination (walking to, driving to, following directions to)
- Result (test/exam, sport, group effort)
- Object/Goal (flirting, making plans, seeking employment)
In terms of usage, it is appropriate after being sidetracked:
1.cause (someone) to be distracted from an immediate or important issue
As to your level of English proficiency, I rate it a solid 4.5, which is clearly on the right track.