I'm interested in what level you are reading at? Six months into learning I was reading very simple children's books. Now I read at middle school level. For me, speaking and reading are going well. I read silently much better than reading outloud. Listening is a big challenge and sometimes frustrating. My writing skills are embarrassing.
I'm also wondering about "ฟันไม่ทัน". Is this a misspelling or a slang term I've not heard? Did you mean "ฟังไม่ทัน"? I often use "ฟังไม่ออก" as well.