Nether portal in the nether

[titans55]

Whenever I made a nether portal it turned out I ended up in a locked room. What should I do?

[DeeKay]

It's the way Minecraft's mechanics work. Portals in the overworld will link up to any available portals in the Nether.
There's not much we can do, but more can be read about it here: http://www.minecraftwiki.net/wiki/Nether_Portal