There are so many ways to go about getting an image on a page and you've gotten a LOT of good ideas here. I really recommend searching for drawing instruction on-line, such as on Youtube. This isn't the sort of forum where you'll get adequate drawing and sketching instruction. That said: 

 1. Observation. Strive to see what is THERE, not what you "know" to be there. To start, it helps a LOT to work from photographs.
 2. Composition. Make sure you have a point of interest--preferably something that naturally draws interest like a person or a bright flower or an eye, etc. In most cases, do not put your center of interest in the center of the page.
 3. Make sure you point of interest has at least some of these attributes: the greatest detail, greatest tonal contrast, brightest color, most significance.
 4. Rough in. Do not work on details until you have basic shapes to represent your overall drawing. If you do start detailing, whatever thing you start working on first will end up too large and will crowd out the rest of your image.
 5. Work from less detail to greatest detail, and keep everything else less rendered than your point of interest.

Just a few ideas. There's loads of free instruction out there, so go find it! Have fun. :D