Well, I was at the same place where you are standing today. In which category do you wanna proceed? Sketching? Painting?
If it's sketching, there are several books available in the market, see those sketches and TRY copying them at first, and while copying, do notice as to why you shade a region darker etc and then turn to day to day scenarios,as in try making sketches of what you see in everyday life.
If it's painting, start by copying paintings, though you need to make sure that you choose a simple design. If you want, I can help you with that. And later on, try to make paintings out of photos.