Hello, Brendon111, and welcome to Wikipedia! Here are some pages that will help you to find your way around, understand some of the most relevant policies and guidelines, and develop your editing skills:
A few other useful tips: Please sign your name when you comment on talk pages (not articles) by using four tildes (~~~~), which will show your name and the date. When you edit a page, even minor edits, you should include a descriptive edit summary. If you need help, Drop by the Help Desk or the New Contributors' Help page. Another option is to join the adopt-a-user project. You can also add {{helpme}} to your talk page, followed by your question,and someone will come answer the question, or point you to the proper page. Happy Editing!~~~~
You're ready to use the template for welcoming users directly from twinkle. Open a user talk page, start twinkle "welcome" and search for the description you added on the preference page, it ought to be under the heading "Custom welcome templates".
This template automatically signs itself. Don't add the four tildes underneath it.