If you are new to witchcraft, you probably shouldn't be trying to cast spells at all. Spells are basically an attempt to manipulate energy to get a desired outcome.
Unfortunately, many people think it's fun, or glamorous, or clever to try and cast spells, when they don't understand the consequences of doing so.
The best thing to do is to practice on simple things like blessing a vehicle so that you travel safely, or to get a parking space, or even to gain a small amount of money.
Please don't try and do spells that try to manipulate other people -- that is just wrong and can backfire on you big time.