I am almost 16 months out. I can eat 4-5 ozs per meal & I usually have 1 or 2, 2 oz snacks. I don't count calories. I eat as low carb & high protein as possible. My goal is 100 gr protein per day. I don't exercise nearly enough.
I was in the same situation. I swear most of my pain after was from the hernia repair. Take things slow & easy after surgery. A small pillow to hold against your stomach when getting up & sneezing will come in handy. Best of luck!