How to make a sitemap? Im newbie :) Thank You!

The purpose of the given web page should be directly stated in all of the following areas:

Title tag
URL
Content of page
Image alt text

Title,
Description
Quality Content
Alt tag in Image
Image optimization
Page Loading Time
Css and Js Optimization

on page seo is best option to promote website on google

Most important On Page Activities are:

1. Title.
2. Keyword Density.
3. Keyword Prominence, Frequency, Proximity.
4. Outbound Link.
5. Image SEO.
6. Sitemap.
7. URL Slugs / URL Structure.
8. Meta Descriptions.
9. Meta Keywords
10. Headings Tags
11. Website Speed.
12. Broken Linking.
13. Canonical URLs.
14. Content Quality.

ON page task
Title
content
meta tag
meta optimization

On Page SEO Techniques To Rank On First Page
10 On page Optimization, Techniques for Better ranking
* Blog Post Title (It makes user clicks + SEO advantage when you use Keyword)
* Post Permalink Structure makes article more user-friendly
* Heading Tags
* Keyword Density
* Meta Tags
* Addition of Images
* Word Count Per Post
* Content Interlinking
* Linking out to External Websites
* Write Engaging Content