Plenty of crap jobs in the cannabis industry. Just like any other industry, there are good jobs as well.
My Advice?
Start growing, even if it's just a Micro Grow, it'll get you on the right path.
Start reading/learning about the different types of cannabis available, their medicinal/recreational effects and how it all ties in with terpene profiles.
Read up on CBD and other cannabinoids like CBG and others. The more you know, the more valuable you're going to be.
Go to events put on by dispensaries. Attend any public functions and get to know the staff. Be honest and up front and you'll be surprised how helpful people can be.
RE: ADVICE! What tips do you have for attending a cannabis career fair?