To do magic one needs will (the will power to make your desire reality), intent (knowing what you desire), and action (taking actions to make your spell work). That's all you need.
Now you wish to do easy magic, but what is it you wish to do? Remember, you must have an intent, something you wish to happen or alter.
How do you learn?
Listening to yourself, or your intuition. This is following your inner thoughts, your gut, your instinct.
And secondly, study. Research is very valuable, especially in this day and age when we have more resources than witches ever had. Make use of this valuable information. Purchase books, find free PDFs, learn and obtain info. And then apply it, try it out, and evolve your practice.
Thirdly and most optional, is being spirit led. This means you learn your witchcraft (or magic) directly from a spirit or spirits. This one is the most optional, isn't right for everyone, and has the most potential for error.