I became a top actor just by reading books is a Manga/Manhwa/Manhua in english language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Due to his lack of talent, Seong-hyeon gave up acting and became a writer. Seong-hyeon is a genius author with a natural talent for screenplays, but he still misses acting. Then one day, he got into a truck accident on set