Had a horrible panic attack from weed last night and I still want to smoke today

I've smoked weed pretty much every day for many years. I've been wanting to quit for a while now, even if it's just for 2 weeks or 30 days, because I genuinely want to know what being sober feels like.

I've tried to quit before and always end up going back to it.

Last night I had probably the worst experience I've ever had. I'd made it through the day without smoking, but around 9pm I said fuck it and bought some. I took about 4 hits, got on a bus, and 10 minutes later I was insanely high and convinced something was horribly wrong.

I got off the bus and ended up on Bedford Ave in Williamsburg asking random people for help because I thought I was having a panic attack. This was probably the single most embarrassing thing to have ever happened to me. Eventually a guy who had walked past me came back and talked me through it, and I calmed down after a few minutes. My friend also came to get me.

Today I'm extremely embarrassed and still shaken up. Whenever I close my eyes I replay the whole thing and feel that panic again. But somehow, despite all of that, I'm still craving weed today. My brain is already telling me it was just a bad experience, maybe it was the weed I bought, maybe I should just go somewhere I trust, etc. And being at home makes the cravings even worse because I've associated being home with smoking for so long.

Has anyone else been in this position? How did you actually stop when you knew you wanted to quit but still desperately wanted to smoke?