Synthetic pot is very dangerous. My 36-year old has been smoking it with pot for years. He has not worked in seven years. He has no interests other than alcohol and drugs. He has lost much of his mental capability. He was gifted as a child.
Presently he has a girlfriend who supports him while she works as a medical assistant. I expect her to leave him one day, but I don't know for sure. She also uses.
Do not underestimate the spice or synthetic pot.