I lie and tell people that I wake up earlier than I actually do
Why do you need to lie about waking up early?
I sleep more than I have to in order to improve my metabolism and I don't think people would understand.
You shouldn't be lying to people about such things. They might get mad when they find out you lied to them.
Don't get your panties in a bunch.
Lying to friends about something so petty is wrong. Just be truthful to them.