Welcome to the forum. @DocWard , said it perfectly IMHO. I don't think you are grossly overweight for your height assuming you have a margin of muscle mass. It sounds like you have a workable plan, functional training twice/week and your choice of MA to study. Just listen to your body. I would start with 3-days/week and work my way up. This will avoid some of the slingshot of overdoing it, then underdoing it because you feel like crap. At some point you may choose to cross train 2 styles, but I do not think you are there yet. It sounds like you have a fortunate situation having one facility that offers everything so take advantage of it; and listen to what Doc said. Best of luck and keep in touch. Let us know how it goes.