The nice thing is that you're used to a good situation. At your new job, when you feel uncertain, you can ask, "Why is this different?" The answer might be that

The nice thing is that you're used to a good situation. At your new job, when you feel uncertain, you can ask, "Why is this different?" The answer might be that you don't know who to talk to about an issue, or you don't understand the architecture as well, or you don't know your way around the code, and you can translate those differences into corrective action: ask another person who to talk to about the issue, ask a coworker if they can answer some questions about the architecture, study the layout of the code repo. This puts you way ahead of someone who is less experienced, or who is coming from a less ideal situation. They might not know what it feels like to be oriented in the code, to be in the loop, etc. Someone like that might languish or need coaching to improve, but you will get up to speed in no time.