Your text looks wrong because you aren't aware of InDesign's units of measurement. By default, all InDesign measurements (widths, heights, columns, gutters, etc.) are in picas, a typographer's unit equal to one sixth of an inch. Twelve points make up a pica. Thus one inch equals six picas equals seventy-two points.
There are a few ways of dealing with picas if you are unfamiliar with them. Perhaps the easiest method is to choose a predefined page size in the 'New Document' or 'Document Setup' window. Choose 'Letter' from the 'Page Size' dropdown menu to create an 8.5 by 11 inch document; 'Legal' size equals 8.5 by 14, whereas 'Ledger' measures 11 by 17 inches. A3, A4, A5, and B5 are international standard paper sizes in use throughout the rest of the world, Mexico and Canada excluded.
You can specify measurements and units directly in the 'Page Size' 'Width' and 'Height' boxes; use an abbreviation for the units.
You may also change the units system in the preferences menu:
InDesign defaults to a display setting that draws low-resolution versions of images to the document workspace, allowing InDesign greater interactive responsiveness. You can change the display quality by right-clicking (control-clicking on a Mac) an empty space in the document and choosing the appropriate 'Display Performance' setting.
Guidelines, gutter-lines, margin-lines, etc., are there to help the designer with laying-out and aligning the elements in his or her document and by default do not print. You can turn off display of all helper lines by putting InDesign in 'Preview' mode: View→Screen Mode→Preview.You can reset the position and appearance of all toolbars and palettes by clicking Window→Workspace→Default. You can also save a custom workspace by clicking Window→Workspace→Save Workspace.
To start, use Master Pages during the design of your document. Place whatever you'd like to appear on every page on a Master Page, then make sure you've applied the Master to the pages in question. InDesign documents can have multiple Master Pages.
InDesign hides the page numbering function under Type→Insert Special Characters→Markers→Current Page Number. You will need to insert the page numbering marker at the desired position in a text frame on a Master Page.
Adding running headers takes two steps. First, reveal the Character Styles palette by clicking Window→Type and Tables→Character Styles. Then create a character style called "Running Header" and apply it to whatever text you would like for a heading. Finally, place the running header placeholder (Type→Text Variables→Insert Variable→Running Header) within a text frame on a Master Page wherever you would like it to appear.
There are two types of columns in InDesign: document columns and text frame columns.
Create text frame columns by right-clicking (or control-clicking) on the text frame you would like to divide into columns. Choose 'Text Frame Options...' from the context menu, look for the 'Columns' heading, and fill the 'Number' box with the number of desired columns. InDesign will automatically calculate the width of each column and fill the text frame. You may also specify the width of each column, and either overfill or underfill the frame. See Figure 8 for a step-by-step illustration.
Document columns guide the layout of your publication. For example, if you wanted two thirds of a page dedicated to text and the remaining third reserved for illustrations, creating a two-columned document would provide the guides for later placement of text frames, shapes, pictures, etc. Specify the number of document columns you would like in the 'New Document' dialog, or alter the number of columns on an existing page or Master Page from the 'Margins and Columns' dialog box (Edit→Margins and Columns...).
Text frame columns must be of equal width; document columns can be differently sized. You can fake the appearance of variable-width text frame columns by creating multiple text frame columns and threading them together.