We get more than one thread per forum group. Try clicking the forum itself to see all the topics under it.
In other words, click on the words/link “plasma focus forum” in the left column, rather than whatever post is in the right column.
The link in the right column takes you to the most recent specific thread within that forum. The link in the left takes you to a listing of all the threads in the forum, and then you have to click one to go and read the posts.
Another way to see all your own posts is to click on “Your Public Profile” in the top of any webpage. Look up now. See that, right after “Logged in as: your name”? And that gets you to see what other people see of your profile.
Once you’re at that page, in the box underneath your picture/name and member group is the link to “View all Posts by this Member“.
Click that and it should take you to a page with links to every thread you’ve posted in.
You can also see what threads other people have posted in. When you see their name in a posting, click it and you get to their profile and you can see the threads they’ve posted in. For example, in the heading of this post, you will see “Rezwan”. To the left. Click it, and you’ll see all my posts.
To update your profile and add pictures, a bio, a webpage, or what ever, you click on “Your Control Panel” at the top of any page.