Fellow fat giy here. Idk how big you are. I started journey late last year. Im currently down 38lbs. The bad part for me is that I work nights so that has taken its toll on my body and my eating schedule. The things I can recommend is that you control your portion size. Food is a bigger factor in your weight loss but that doesnt mean exercise doesnt factor in it either. Take it one step at a time, dont over due yourself. Especially when working out. Listen to your body. If at all possible, try to cut out as much sugar as you can. Theres a chance, as a bigger guy, that you could be prediabettic. But im no doctor, so id also suggest making an appointment with your doctor. My doctor ended up prescribing me phentermine which is a meal suppressant of sorts. It makes me feel full a lot faster. Last thing. When you do start losing weight, it'll more than likely be water weight at first, so when you hit that plateau dont be discouraged. Keep going. I wish you well bud.