Success is something that can never be measured by the prospect of the outcome.
Sometimes success is hidden behind the challenges we face.
If you continue to work on your goals without giving up, one day you will reach where you want to reach and achieve what you want.
There must be something motivating him to be successful, or he’s just trying to appear successful.
So since you can’t see what drives his success in this situation or if he’s faking it, you can’t properly predict whether he’s truly successful or not. You can’t see his success with your eyes because it’s not tangible.