How do I remove a linked/connected gmail account from my first gmail account?

dexter2

Estimable
Jun 7, 2015
19
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4,560
First of all, I'm really sorry that I have to ask this question on the forum. It should be asked on the Google forum. But for some reason I cannot post on there. Also, there is no similar question that is already on the Google forum. Okay, my problem is that whenever I turn on my computer and go onto Google Chrome, it will automatically log me onto my second gmail. I want it to automatically log onto my first gmail. They are both linked/connected. I can switch from one to the other with a press of a button. Please help me either remove the second gmail, or, even better, set Google to automatically sign into my first, not second, gmail. Also, whenever I go onto YouTube, it is on my first gmail. I am utterly confused, and if you know the answer to this question, please help because this is getting really bloody annoying. Thanks,
Dexter2

(P.S., sorry if I put this in the wrong category, I wasn't entirely sure what it counted as.)