Never pressure yourself to finish a song on one seating, as this is not practical. Just jot the lines as they come to you, and eventually you will be able to pick up the best of the ideas or phrases to complete the Tamil Song Lyrics for your song. As in all other cases, practice makes perfect. The more songs and lyrics you write, the better you will become. To ensure that you don't neglect your lyric writing, it is better to set aside a regular period every day to write lyrics, preferably early in the morning when you are fresh and will thus get better ideas.