There may be several reasons for the leader to do this. First, you are a newcomer and they are trying to squeeze you. Second, they think you are very capable and feel reassured when I leave it to you. Third, they want to take advantage of these things. Let me train you. So, the important thing now is not the reason why the leader does this, but whether the leader knows that you are overwhelmed.
If the leader is squeezing you and does not care whether you are overwhelmed, then you can make a choice at this time and choose whether to still work here, but in fact, I think it is good for young people to be busy. At least you can learn something if you are relatively busy. If the leader wants to exploit you, it doesn't matter if you know it or not, because he just wants to exploit you.
If the leader thinks you are capable, feel free to leave it to you. It depends on whether you can tell. If so, then you can have a chat with the leader, either heart-to-heart or at work. Come up with some ideas. Don't say you are tired. It doesn't matter whether the leader knows you are overwhelmed or not. You can say that you are with others. For example, if you are an old person, then bring a new person. If you are a new person, you can Talk to your leader about whether you want the work content to be more vertical, so that you can filter out some of the work.
If the leader wants to train you, then this is the best thing. You can directly talk about your current situation, but please don’t just come up and say that you are overwhelmed. You still need to have a good chat. .
For the above things, each of them will lead to different endings, but in fact they are all one way and two choices, such as whether to resign, and if not, whether to talk to the leader, and if so Finished, whether to choose to resign, etc.