There are two articles you should read in the spell section: Black magic and white magic.
Read them at some point. For now, understand that magic is magic. It has no color. It is.
Black and white also know as bad and good, baneful and beneficial, negative and positive, are moral judgments. This judgment depends on the person who is judging. If they don't like what you are doing they will call it 'black' if they like it they will call it 'white'. I dislike both words. They are pointless, they cause issues, they confuse people, and they lack any true importance or help to anyone.
It is possible to do both. One is not confined to a choice. You can cast what you feel it sufficient for the situation, or not cast at all. It is a personal choice. You must make it yourself.
Now, lest you misunderstand, magic has a 'cost'. Everything you do has a cost. You will have to face the consequences of your decisions, in magic as in life. If you are willing to deal with what may come from your working, feel free to do it. If you are not willing to pay the cost, I suggest you take a good hard look at what you are doing and what your motivation is.
Things go wrong. That's Murphy's Law (google it). Action and reaction are what propel life. Work out how you will deal with what might come prior to doing a working. Learn to stop before you start. If you intend to summon, make sure before you do know that you can send it back. When I learned to drive a car, the first thing I was taught was where the brake was. The instructor said it was the safest way to learn.
Understand that magic doesn't give you control. It is a matter of degrees of influence. You cannot make certain things happen regardless of how much you want them to. You can screw things up to the point your life begins to suck.