What does a good Rose need?

Hi guys, i’m sorry if this topic is same as others.
I’m a newcomer to SF4 and i picked Rose as my main char because of her design. But i met some problems in improving my skills, i dont know what i need to focus on training. Using of normals? Footsie? Zoning? Execution? Or something like frame advantage/traps, etc.
Please give me some advices, i don’t want to waste my time uselessly.

Get your fundamentals right. Learn how to move and space your attacks well (safely) are the most crucial to your success.