Don't worry. Failure teaches success.
I wish you success in your new job.
I created a curry-flavored toothpaste when I was told, "If you want to be successful in business you need to think outside the box."
When you become achievement, you have probably gained plenty of success.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.