Don’t panic at the temp stall. The temp will eventually rise or worse case you wrap in foil and finish in oven. Good luck man don’t over think it
Edit: below is site I used when was into smoking few years ago. Great tips and rub/sauce recipes. Check out the Lexington dip sauce if you are a east nc vinegar guy. Also got ketchup based and others if vinegar not your style
https://amazingribs.com