@navinpeiris Please see my above comment reply as it wouldn't let me post the url again but it's called Auto Respond ALL social media
by PransuInc on Chrome Extentions for example
I usually block myself for around 30 Minutes a day for answering my DMs on Twitter.
I answer DMs and engage in conversations.
When the 30 Minutes are over I commence on doing something else and continue where I stopped.
I might not be the fastest replying, yet it's efficient since you solely focus on that task!