I gave up on my religion
Why are you giving up on religion?
I'm so tired of telling myself lies all the time.
That's okay, it's perfectly okay if you don't want to be religious. It's up to you to find your own path in life.
Yeah, I always struggled following the rules and it's too much effort.
Sometimes it can be a bit demanding to try to follow all of the rules set forth by a religion. It's fine that you have decided to give up on your religion. I'm sure you will still try to lead your life as a good person.