Do not be afraid of making mistakes. Tamil speakers are notoriously appreciative of anyone attempting to learn their language and will gladly help correct your pronunciation.
To learn Tamil quickly, you need a structured "Tamil through Telugu" mobile application. Here is how to set it up: learn tamil in 30 days through telugu install
Learn how to show respect using suffixes (like adding "-nga" in Tamil, similar to "-garu" or polite plural endings in Telugu). Do not be afraid of making mistakes
Before downloading any apps or books, it helps to understand why your Telugu background gives you a head start: avar) and greetings (vaNakkam
Learn basic pronouns (nAn, nI, avar) and greetings (vaNakkam, sAppdIrgLA). Week 2: Daily Conversation and Vocabulary
Learn Tamil in 30 Days Through Telugu: Your Ultimate Download and Master Guide