To view the opportunities that you've saved as 'favorites' or for which you have applied, press on the profile icon in the top-right corner of your screen. 

Then press on "Agenda"

Press on the tab "Applications" to view the opportunities and events for which you have applied

You can view the opportunity and status of your application

Press on the drop-down 'status' button to cancel your application or send the organiser a direct message 

Under the 'favorites' tab, you will find opportunities or events that you have favorited

Press on the opportunity to view it or apply