If you ask this question you probably don’t know much mining and bitcoin itself. Well, it isn’t a problem : we live in 2017.
I won’t recommend you to mine. It cost money and time. Moreover it requires a good comprehension of the system. I don’t think that you want to learn things that aren’t really useful. What I advice you is the following.
I found one site which give you some bitcoins every hours for a single click. I’m maximizing my clicking right now.
You register, click when you feel like to click and gain bitcoins. Is this hard ?