An emergency weight loss trainee is someone who desperately needs to lose weight to stay alive. Think 6'2" 375lb, not 6'2" 277lb. This is not you. You actually have the same BMI as me and I can run the program just fine. You are a novice strength trainee who just happens to be fluffy.
If you are able to complete the lifts in a safe manner, you are good to go; start running the program ASAP.
I recommend that you spend about 2-3 months jacking your lifts up with the novice program. It'll give you some nice momentum on this whole "getting a grip on your life" project you're embarking on.
I recommend that you reach out on the nutrition forum for help. Bodyfat loss is achieved though diet management, not cardio.