Hi Fabiola! The experience varies a little depending on whether you're on a mobile device or a computer. On a computer, you'll see your avatar and name in the top right. Clicking your name opens a menu, and on that menu you can get to your profile. From there, you can edit your avatar and cover image, add a brief bio to introduce yourself to the community, etc.
Your profile is also where you'll find tabs that show you your badges earned and hikes logged.
We have a short video overview of all of this in the blog that also might help. 😉