My social skills are ruining my relationship

Hi I recently got into a relationship and my girlfriend hates my inability to carry a conversation. I usually do not have much to talk about( so my usual replies are hmm alright okay) and even when I do I somehow manage to say it in a taunting manner which gets on her nerves.

Guys I need help are there any reading up / exercises / meditation I can do that I will help me with overcoming these issues i face

Thanks a lot for reading hope you all get great with social skills too