I think it's because you aren't very good at English yet. Honestly I'm learning HTML on this website and so far its doing a very good job, I'm having no problems. I did have a problem on the part where you learn about image maps, it didn't really explain it very well how to do it, so I watched a youtube video on image maps and I instantly understood how, honestly if there is something you dont understand go and watch a youtube video on it.
I think its just your level of knowledge of English is really bad. Reading your post I cant really even understand what your are trying to say thats how bad your English is, sorry bro.