What does this mean “ IJWYTSBYGOMFNB “ a girl sent it to me and I don’t know what it means. Help.

After first arriving in new york, charlie parker took a job as a dishwasher at jimmy's chicken shack, where played the piano nightly. listening to his astonishing harmonic restructuring, virtuoso phrasing, and breakneck tempos every night for three months, charlie parker challenged himself to adopt these qualities into his playing, and he continued to practice tirelessly.

Choose the word with stronger connotation to repleace the word scared a) terrified b) distressed c) frightened d) worried

What is the most famous racetrack in america?