I am also coming from north America and the 24 hour flight is rough especially if your flying economy. Hopefully, my next trip there won't be any covid rules and this will be my plan.
I will do some prep work before flying to find a girl that will come to my hotel and can give a nice massage plus extra (FS or hj depending on how I feel). I will hop on Thai friendly or smooci to find the perfect girl. As soon as I land I will take a taxi to hotel then it's the three S for me (shit, shower and shave). By the time that is done hopefully my girl will be in room waiting for me. We get down to business. After that she leaves and I will sleep.
To me this sounds like the perfect start. Now it's more tourist stuff. First thing I do is go to central mall and get a Thai sim card. This usually cost around $40. This so I can message my favorite bargirls. Then I am free to do what ever, drink ,fuck, eat.