In order to see the list of campaigns you have created go to Campaigns -> Campaigns List.
There are the following lists:
All - all your active campaigns.
Draft/Paused - campaigns, that you have not finished creating or suspended.
Sent - already sent campaigns.
Scheduled - campaigns, that have not been sent yet, but with a configured schedule of sending.
Running - campaigns, that have started to be sent but have not yet finished.
Archived - deprecated campaigns, that are not used now.
On the Campaigns List page, you also can manage campaigns, view their type and status, check the performance of sent campaigns.