Destroyer is known to make ppl cry and upset you because you might not know everything at first trust me i went through it myself.......but dont worry ur not the only one........that material is tough its designed to challenge you and make you work harder.........keep going at it and understand and learn from it......and you will do fine dont stop here though u'll find tons of posts abt this but if you keep doing the material again and again you will understand......best of luck