To manage and edit your subscription as well as your billing preferences Account Settings > Billing page. When the
Billing option is selected, if not currently a subscriber, you will be directed to a modal where you can choose a plan that best suits your needs. There is also a link to the pricing page for more information on what is offered in each plan.
If you already have a plan or close out the modal, you will see all the billing details and actionable features instead (depending on your window size you may have to scroll down to view additional sections). From here you will be able to see your current plan, change your plan, see the plan usage, add or remove credit cards, and even renew your plan early.