Separation anxiety?

I’ve turned 18 and I feel like I can’t control my life , I just live day by day with no purpose. I’ve become some-what dependent on weed and alcohol (as the current state I’m writing this). Long story short I’m going through a rebellious state I’ve gotten a tattoo, and a belly button ring(that I kinda regret it’s infected), and I purchased a trip for me and my 17 yr old boyfriend to go to TOMORROW (w/ his parents permission & my hard earned money). Long story short Dad is pissed and won’t acknowledge me if I’m in the same room. And Mom just cries and cries and that makes me more sad then I normally am. And if I cancel the trip I’m out $177 .