To check the status of your orders, first, click on " More" on your Dashboard menu:

Then click on My Orders:

The list of all of your orders will be displayed, you can see the status of the order (active, canceled, filled), the colored stripes indicate whether the order was for SELL (red color) or BUY (green color).

By clicking on a specific order you will be able to see more detailed information about that order, and from here you are also able to cancel an order (if the order has not yet been filled):

If you are looking for an older order, that is not displayed on the first page, you can do so via the search bar on top of the page:

You can also use filters for easier search, just click on the more icon, and a menu of filter will open up: