So does CBD hemp calm down a THC high, or does it make it worse?

I really don't know what to believe at this point. I've seen so many people say that CBD is like God's gift for a bad THC high, that it mellows it out, smooths the rough edges, and leaves you feeling more calm and in control. However I've also seen many claim that CBD actually enhances their high, that using it with THC gets them much more stoned than THC alone, which worries me.
I'm pretty sensitive to THC nowadays. The other day I had a hit of some stuff that's like 13% and was fairly anxious for the next few hours. I wanted to grab my hemp, throw it in a bong and start ripping it to calm myself down, but I was too nervous it would make things worse.
I've got some Side Piece #2 coming from WNC, and it's under 3% total THC, but in case things go south, I'd love to have my CBD hemp there to smoke if I need it. I just don't want it amplifying a bad high.