What I suggest? If you really do want to do some more E, then staple something in your mind along the lines of:

"If it gets too intense, I'm going to lay down and just let it pass. It'll probably feel really fucked up, or maybe you'll be riding a space ship. Either way, I'm going to lay down and let it pass."


Yeah, but it you're too affraid you won't have at least THAT much control over your mind, I suggest you just don't fucking do it.

Sorry, I'm a bit stoned myself, but I think you'll get it.