@Summers - Click on Profile (6 to left of Logout), then "Show the last posts of this person".
You can also do this by clicking someone's username - Click "Seabody" on this post, then "Show the last posts of this person". Currently, the last post should be this one.
Hope this helps 
EDIT:
And I don't think I've seen you around, so welcome to the forum!
Thank you so much!! I found my posts in my profile!

Yes I'm new here but joined here a couple of months ago.

Actually, I'm not an English speaker so I'm afraid that other English speaking users might misunderstand my English expressions which you don't have in your places. I'm trying not to be rude but sometimes, I got some misunderstandings from English speakers before due to my cultural way of English expressions. I learned English with English grammar text books. The Grammar books don't teach me the proper social English expressions but the way how to write and understand English. So if there's some rude words I use in this forum, please help me to learn your way. English is hard as a foreign language to me. Also it helps more my head spinning on English forums.

Nice to meet you!:D