You can start with reading those articles that was given to you by forum members above, always create maybe two to three hours or more to come here and read from the topics being discussed so that you can easily understand how to create topics and how to contribute on discussions based on the topic. Have the zeal to learn and study as that is the easy way for you to grow here. Be creative and also bring the knowledge of what you already know outside the forum, so that other members can learn from you.

 Every high rank that is here started as a newbie like you, so don't feel inferior no matter the criticsm, because it is alike for you to improve yourself the more. Don't forget to use the search engine to get information on whatever you want to know as many topics presently has been discussed in the past. Always Do Your Own Research to get the proper insight on that topic.
Welcome to the forum OP.