Только перевод, без пояснений, сразу в дело. Идиомы переданы смыслом: «зубы на полку» стало «starving within six months», имя осталось Petya.
Long story short, Petya and I decided to open a coffee shop. We had barely any money and zero experience, but enthusiasm to spare. My mother-in-law told us our heads were in the clouds and that we’d be starving within six months. Fast-forward a year: the shop is up and running, there’s a line every morning, and my mother-in-law drops by every day, acting like she believed in us all along.