Here is a link to a digital copy of the Quick Start Guide which ships in the box with every Anova product.
There are further documents in the Support Area that will help get you started.
Sous vide cooking can deliver wonderful results, but you will need patience and a willingness to learn. Sous vide processing can't be rushed. You might be better to relax and take your time and gain some basic understanding of the process without the pressure of a hangry family watching.
Feed the hungry horde using familiar methods tonight so that you can relax into the learning experience.