If you want to work on the delivery service industry then you need to make sure that you are able to deliver all of your cargo. This means that you won't lose any of the single cargoes since it is so precious for your client. If you lose any of them, then you would lose the trust of your customer. Instead of coming back as you client, they would search for another driver that could help them deliver the goods to their location. If you let them be lose then you won't build any trust. Trust is important if you want to succeed in a business venture.
Drive your truck as fast as you can till you reach the finish line. You don't want to lose any of the cargoes since that would be a total bummer. The idea here is to deliver at least 80% of your cargo for you to make it to the next level. There are many obstacles on the road and it won't be easy. However, if you are a good driver then you can do the task and make it to the next level. Expect things won't be easier on you as you make some progress.