Welcome.
Yes, smokey mountain is OK to use. You can use anything as a substitute, so long as it doesn't contain nicotine.
Nice job posting roll. Now that you've posted roll, you've made a most sincere promise to the entire KTC community that you will not use nicotine for the rest of the day. Make the same promise early tomorrow morning, and every tomorrow morning after, and nicotine will be off the table again. It's not an option.
It's that simple.
There's one correction to make from your intro - you never quit tobacco. You stopped using for an es=xtended period of time. We QUIT once, and never use again.
You know how easily nicotine can come back into your life after you've stopped. So, my best words of advice are to keep posting roll for as long as this site exists. Make your promise, keep your promise every day. I've been quit 902 days, and I keep posting roll, and don't plan to stop. I view posting roll as a cheap insurance policy. All that is required is an internet connection, and about 45 seconds (once you get good at posting).