First off, welcome to the forum.

And congratulations, that was an LD. I found my first lucid dream came about almost exactly the same way as yours - I had been reading about lucid dreaming and went to bed a few hours later. I expect it was still simmering over in my mind when it happened. So:

- Was those lucid dreams?[/b]
Yes.

- Is it possible to go lucid only after reading and learning about lucid and techniques that night?[/b]
Defintely, I'm pretty sure that a lot of people have their first LDs the same way. Children have lucid dreams without ever reading about them, there is no set method. Some people can just do it.

- how can i keep the dream going, get a clear view with eye sight and do what i want[/b]
This is a much more open ended question. There's an entire forum category devoted to dream control, and it tends to be a slippery thing - if you get unsure of yourself, like badassbob says, you can soon lose control of the dream - and there's a million other ways to lose it. But looking at your hands/tactile sensation helps some people. All the confidence you can get helps too. It's best to find your own method that works. Some people would be really happy to get an LD first 'try', so I wouldn't be too disheartened by it.

- the feeling was really weird!![/b]
Yeah, first time you do it can feel pretty weird (and pretty exciting at the same time). That's to say nothing of the other feelings and strangeness you can go through in a lucid dream.

You'll probably take to it like a fish to water, though.