You can manage your own subscription via the subscription management portal. Here you can download your invoices, see your subscription, change your plan - if you want to downgrade or upgrade - as well as pause or cancel your subscription.

Navigate to your profile menu (your avatar) and click on "Manage subscription":

Next, click on the button that says "Open Billing Portal".

In the billing portal you can make the changes by clicking on the actions menu (three little dots - depending on light/dark mode, this might be quite pale/hard to see). If you signed up before April 2024, it will look like this: