Go to your profile and scroll to "Your recent activity." At the top of that there are 4 boxes with green squares:
Breeds & Supplies
Forums
Articles
Profiles
Unclick all but articles and you will see the articles you have made.
Your uploads are at the bottom of your profile.
The new format will definitely take a lot of getting used to, but there are so many features that are huge improvements. All members have unlimited image and PM storage space, inserting images is so much easier, you can quote multiple people at once, etc. Give it a bit more time, play around, click stuff, do it all.