During the whole day of your working process, you will possibly encounter some works that are very random and that you will make sure that you will finish them.
Random works are ok too, a good add-on to your experience. This is one way to develop yourself and that you will able to be a good worker sooner or later.
[image source](https://cultureghost.deviantart.com/art/Random-meme-Show-your-work-472260481)Exposing such random making yourself a jack of all trades, in which you will able to work in any kind of situation since you have the knowledge and the skills on how to perform them.
Once you have those kind of skills, shifting from work to another would be simpler and that it will not cost you much of your time anymore.
Determination on succeeding this type of duties will be a great progress for you as a worker.
So never surrender if someone or your boss give you a random work which is very new to you. Never try to disagree with some that you cannot do it.
You just need focus and you will able to do anything. Just trust yourself.