You just need to step back and examine your life. If you keep telling peoples secrets they're not going to want to be your friend anymore and they also won't tell you anything. If you lie to people and find out, they're also not going to want to be your friend. Soon you'll end up a friendless loser sitting home alone every friday night. Think about that before you start to blab a secret or tell a lie!
Get a diary that way you write it down :)
Or just tell people not to trust you?
do not talk much