In this video we break down the requirements to get your instrument rating. The information is specifically for Part 61 education. Part 141 is basically the same, but there are no cross country hour requirements before you take your checkride.
Find the official regulations here: https://bit.ly/2Puzvps
I've tried my best to give you a general idea of all the requirements. I may not have them down exactly but it will give you everything you need to get started.