You have to be atleast full member rank to wear avatar and you are just started your journey so I think it will better to learn other things before it. First you should know the whole criteria of avatar and signature which you can found here.
https://bitcointalk.org/index.php?topic=178608.0Forum ranks/positions/badges
additionally your image avatar size should be 120x width and 80x height. you can adjust it online or check this thread
[GUIDE] How to change desired image as Bitcointalk avatar size using app
Talkimg.com is the best I have recently learnt of and am glad I knew about it before I read this post. Although am still lazy about embedding any images in my posts, I can assure you am in the process of trying it out.
Awesome i really appreciate the support