I've been using windows for 10 years, and now discovered Ubuntu, which is way cooler, but the downside is that I'm at a complete lost.. So far , so good but what I find annoying is that I have to type my password for every single thing I do, is there a way to disable that?
If you have to use a password for every single thing you do then I would suspect that you have a problem.
If though you mean you have to supply a password when doing things that impact on the system files then this is good.
Just because you had windows set up to run without something as basic as a password doesn't mean you should transfer the behaviour ;)
If you find that you are running a lot of commands in one go try
Run the commands and then exit.