Hi amamanikintoo and welcome to the Q&A Forum!
Glad you're working hard to use your camera. The areas you're inquiring about are very important. Here are some links to the information you requested:
Shutter speed chart:http://www.digicamhelp.com/taking-photos/advanced-techniques/shutter-speed-chart/ISO:http://www.digicamhelp.com/camera-features/advanced-settings/iso/F stop:http://www.digicamhelp.com/camera-features/advanced-settings/f-stops/Relating to F stop, here is information about aperture and how it controls
depth of field:
http://www.digicamhelp.com/camera-features/advanced-settings/aperture/http://www.digicamhelp.com/taking-photos/advanced-techniques/dof/If there are other camera settings you're interested in, type the word in the search field located at the top right of pages in the site. It will return a lot of information on your topic. If you have specific questions, you're more than welcome to ask them here.