Driving assement. help!

Hi guys some of you already know me. Passed my c+e mid march. Handed out alsorts of cv.s. nothing back from anybody. Friend of mines boss i had got talking to him yestrday said a guy rang him looking for artic driver for tipping work. Composs. 6am start 2pm finish. Around 50 mile. 3 loads a day i think. So anyway another guy got job. So my friends boss hears the guy looking more drivers. I get a call hour ago. Guy knew id no experince whats so ever. So gona give me drive any how. Scania and volvos. So assement 3pm monday. If good enough start right away. Any advice guys really apprecated. Bricking it and nerves :confused: