Hi Michael
Don’t worry we are here to help you.
1) You are using the large size of the logo, So please go to Appearance => Customize => Site Identity then Set the logo width 100px and click to Publish button. See the screenshot for more help https://prnt.sc/11ul739
2) Please add the CSS code below in the Additional CSS Box. Please go to the Appearance => Customize => Additional CSS then paste the CSS here and click to Publish button.
@media (min-width: 992px){
.navbar-brand {
padding-top: 0.500rem !important;
padding-bottom: 0.500rem !important;
}
.navbar .nav {
margin-bottom: 1.200rem !important;
margin-top: 1.200rem !important;
}
}
Let us know if it works for you.
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Thanks