How to cut out pauses and unneeded places from video in Adobe Premiere?
You need to create a sequence. If you're not familiar with video codecs, the easiest way to do so is to right-click on your clip in the project panel and select New sequence from clip ..., which will create a sequence using the resolution and framerate from your clip.

Once you've created the sequence, it should appear as a timeline in the lower right area of your screen. If you have not yet set an in- and outpoint, your video will be in the sequence as a whole. Make sure to delete that (right-click on the video in the timeline and select Clear), so that you get an empty timeline to start with.

Then you can start putting your video together. Set the in- and outpoint for the first scene from your video that you want to use and then drag the clip from the project panel into the timeline (alternatively, you can push insert (shortcut ,) or overwrite (shortcut .)). Move on to the next scene in your video, again set in- and outpoint and insert the clip into the timeline, and so on. 

Once you have everything arranged in your sequence, you can export the sequence as a whole via File -> Export -> Media ....