It's getting hard to live with myself. I can't stop lying
I think it's easier to be honest. What do you lie about?
I lie to my friends about how I'm feeling, pretending everything is fine to avoid arguments
You should talk to your friends openly. You shouldn't have to feel the need to lie.
Maybe but I like to do things my way.
I thought you were unhappy with yourself because of the lying, so maybe it's time you find a new way of doing things. Once you learn to be honest with your friends those friendship will become better and more meaningful.