Use this snippet to remove your tweets.

remove.rb

require 'tweetkit'
require 'json'

client = Tweetkit::Client.new(
  consumer_key: "",
  consumer_secret: "",
  access_token: "",
  access_token_secret: ""
)

json = File.read "/path/to/data/tweets.js" # get archive of tweets to delete older tweets
tweets = JSON.parse(json[25..-1])
deleted = IO.readlines("deleted.txt").map(&:chomp)
pp deleted[..100]

ids = tweets.select { |tweet|
  !deleted.include?(tweet['tweet']["id"]) &&
   tweet['tweet']["id"].to_i <= XXXXXXXXXXXXXXXXXXX
}.each { |t|
  id = t["tweet"]["id"]
  begin
    result = client.delete_tweet id.to_i
    if result.response["status"] == 429
      puts "Failed to mute, trying again in 5min"
      sleep 300
      next
    end
    puts "Tweet (ID: #{id}, text: #{t['tweet']['full_text']}) was deleted"
    File.open('deleted.txt', 'a') { |f| f.puts id }
  rescue StandardError => err
    pp err
  end
}