In the account settings of your profile.

Click on your profile>account settings>subscription settings >membership

There you see the date of renewal and the price. If you took advantage of black friday in the past, it is fixed there.

If not, take advantage, it is added

Did you go premium with the black Friday deal originally? If yes, then it should automatically be billed at the same price. You can find your billing information under your user profile. To be honest I would just ask through the Help Center to make sure everything is in order. My yearly subscription got billed with the black Friday price already, so maybe you can see it on your credit card?

Yes you can integrate for example Shopify with your WordPress website

There are a couple of ways that you can set up payment through your wordpress site. One of the quickest ways is with PayPal. You can also use Woocommerce. Take a look at this training, it might help you Using WooCommerce for Affiliate Links I also used to use a plugin called 'Digital Download' if you have diital products that you want to sell.

Hope this helps :)
Marlinda

Google Analytics is the one to use. Here is an interesting tutorial with the basics once you have paste the code in your site: Beginner's Guide to Google Analytics

Yes, for a Wordpress site, use Google Analytics. It's easy to implement, and doesn't have much to do with WP but rather just signing up and installing the tracking code.

Sounds like a plan!

Go for it I would say.

/Stay consistent

It is fine but you can break corporate corporate employees further as they could be in various strata and gender. You can look at corporate female, corporate male as examples. Demographics can bring out the chance of more content.

Hi, looks ok to me : )