I have to confess that I've cheated on just about every guy I have been with.
Why would you do that? Have you really cheated on every boyfriend you've had?
I think cheating is just a normal thing for me.
Even if you consider cheating to be normal for you, it is not normal or healthy to cheat on every partner you've had. You would do well to reconsider your actions and get therapy to help you work through why you have the urge to cheat like that.
Nah, I'm just going to continue to lie about everything.
If you keep going down that path, you're going to hurt people. Cheating on a partner is a very damaging thing to do, and if your partner finds out you can leave them with lasting emotional scars. How would you feel if your partner cheated on you?