Every engineer and developer I know uses google/stackoverflow on daily basis to find answers to simple programming questions. So never feel bad about it. Most devs have been in your shoes so we know that we can't expect you to start being productive the first day you join the team. And most will ease you into things.
Even people with years of experience still get imposter syndrome. What helped me was realizing I am a smart person, if I am having a hard time understand a piece of code, it does not mean I am stupid. It most likely means the code was written badly or someone thought they where being clever. There is a lot of bad code out there in the world. It's not your fault if it is hard to understand. Even those of us with years of experience have hard time understanding it.
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