my only guarantee lyrics

Keep it coming I've got your back
Do not fear when I'm on deck
A bigger lie I've never told
A bigger story yet to unfold
My only guarantee, I will fuck you up

Another day of pure energy
What wears most is the constancy
A bigger job I've never had
A bigger burden I could not drag
My only guarantee, I will fuck you up

Strange how things come about
Will I ever know how things turn out?
A bigger wish I've never known
A bigger question I'm trying to hone
My only guarantee, I will fuck you up