I joined this forum a few months ago, but I don't know enough about computer-written skills to understand the purposes of most of the written equipment.
It's very difficult for a newbie to understand all these BB codes. But it's not any more difficult as we have very helpful members in this forum. When I came here, I was confused and wondered what is this and how to use it like how people add images, links, bold text, glow, etc and it was very difficult. So for that when something I notice in posts what I do is click on the quote check how he used the code and do multiple posts then I apply the same pattern in my post and make some necessary corrections. I opened different tabs on my laptop which made things easy for me. So I recommend the same trick to you if you want to add anything like the pic, bold Texl, glow, etc Check the posts of other members for that specific thing in the same way that I used. When you doing it two to three times I am sure you will easily understand all the things.
Using BB codes is not always easy especially for people that has not belonged to the group where BB codes are used in conversation. I didn't actually know about BB codes myself but then I think I have had an idea of HTML which uses the open and closing quotes format. I didn't also do it alone, I received some guidance and then I also read on my own which helped me develop very fast.
The only unsolvable problem a member of this forum may have is inability to type and understandable text. In as much as you can put understandable statements together, people will help you solve your problems in the forum. If if you do not understand and cannot use good English, local boards are there to also help.