7週6日目 失敗をきっかけに
Regardless・list・opportunity
接続：N＋を機に
Take this opportunity as an opportunity to change
注意 / Note：It is a shortened form of 〜を契機に, in the middle in terms of style. Often used for major milestones in a person's life: 結婚・卒業・定年・転職, and the latter is almost always a change in lifestyle.
比較 / Compare：Same article: 〜をきっかけに／〜を契機に. These models are often mistakenly chosen for each other — carefully read the 接続 and nuances above and then decide.
よく出る形 / Common form：名詞＋を機に。Is a shortened form of 〜を契機に. The latter is almost always a change in life: 引っ越す・始める・やめる.
結婚を機に引っ越した。
On the occasion of my marriage, I moved house.
卒業を機に新しいことを始めたい。
When I graduate, I want to start something new.
定年を機に、長年の趣味を仕事にした。
On the occasion of his retirement, he turned his longtime hobby into a profession.