Write some Software Chatbot

So I have a chatbot for a chat website currently. Its written in PHP however all it can do is login users into a chatbox and its all from the same IP, and they often disconnect. Im looking for my programm to become better, so it can login a few hundred users with no issue, also so I can login users using a proxy list so different IP's and that my bots can send messages and i can configure a message pattern from them to all follow etc So of the chatboxes have captchas also, im not sure if they are difficult ones but maybe you can see if these ones have already been cracked so user can login to captcha chats also.