Follow these steps:
1. Launch an AWS instance
2. Connect through SSh
3. Execute the commands shown in the video below at 0:46 min. Also, to get the visual description of the installation process, do watch the following video:
For your second question, I mentioned the link, which you can check. This link is helpful for both the beginner and intermediate cloud enthusiast. Here is the link.
For further reference, you can learn more about Jenkins in this expert prepared Jenkins Tutorial. To accelerate your career in cloud computing, you can choose to join courses from the Cloud Computing Training.