You've only been practicing for a month so relax. It is natural to be curious about "darker" aspects of magic as you put it. You don't have to worry about hurting people around you unless you are reckless and don't know what you are doing.
Take your time, take it slow. Study, research, and practice. There are a lot of helpful forum posts and articles here that you can read; use those to your advantage.
Check out the General Info section of the forums. The pinned threads are especially good for newcomers. I wish you the best, and don't be afraid to ask questions.