Follow the dolce diet, do that thing that gabe refugee did, get yourself motivated like BJ used to be at one unspecified point in time, and when you are weighing in...be sure to lean on the towel like DC, have the commissioner that weighed in bristol marinade keep an eye on the scale.
You will also have to call someone out who is already in the UFC that way you could bypass several years of grinding in the regional promotions
And then there is the second option which is to use a time machine and travel back in time to UFC 3 and take out Steve jenum in the locker room and take his place as an alternate in the finals.