‘riding it out’ or ‘sailing through’?

What’s the difference between riding it out and sailing through?

Compare:

1. I lost my job and don’t have much money saved. I’ve to ride it out until I get a new job.
2. She sailed through the entrance test and the interview and is now awaiting her appointment letter.

So ride it out (1) means going through something difficult or unpleasant whereas sail through (2) means doing something effortlessly and successfully.