The quoted passage is textbook rationalizing. The clipped sentences, the defensive clauses "Being frugal", "was one option", "as a business teacher" and the re

The quoted passage is textbook rationalizing. The clipped sentences, the defensive clauses "Being frugal", "was one option", "as a business teacher" and the rest of the article, all point to a man who wasted a chunk of his life in a rabbit hole and refuses to admit it. At some point, justifying becomes gibbering. The author has reached it.