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After feverishly mining my minimal 10 blocks of obsidian I made me a portal to the Nether. I thought to myself, 'Sweet, something new. This should be fun.' I wanted to jump in immediately but to be safe, I emptied my inventory of everything other than a sword, armor and a pick ax.
I got there and noticed it brought me to a cave. I knew I'd need some torches so I turned around and re-entered the portal and... I have no clue where I am but it's not the portal I entered in?!?!
What happened and how can I get home? I don't have a map because, as I mentioned, I left all my goods at my home base before going to the Nether. Now I'm stranded. How does this happen and how can I easily find my home base? Should it be close by? I tried to enter the portal in the Nether from various directions but that didn't help. I keep popping up in the overworld somewhere other than near my home but I can tell it is at the same location each time I go back to the overworld.
I'm lost... and I'm starting to feel cold. Can somebody help?