Ive' recently started practicing with a metronome, but I dont know if im doing it right.
Can you tell me the right way I should practice?
How much time should I spend practicing?
And how much time is it necessary for me to increase the tempo?
1 day 1 week 1 month?

I would really appreciate the help, cause I want to be a better player.
And some Excersises on Developing Speed would be nice :P. Thanks
start slow. start where everything is perfect. increasing the tempo is like waiting at an intersection. you wait as long as you have to to get a clear shot at a turn. yuo practice as long as you have to to get everything perfect.

watch this

rock discipline by johnny p, very good excersises and concepts