you're on the right track. My best advice would be don't go too crazy on the caloric deficit because it's counter-productive -- you lose water weight at first, but then inevitably you'll binge and gain back all the weight plus interest... most men need around 2000 calories per day just to maintain a constant weight.
I would say drop your calories to around 1700 and continue doing the light cardio (walking). Eventually your body will adapt to the walking and you'll need to change it up...
While walking, I recommend dropping down and doing pushups every 2-5 minutes so that it spikes your heart rate.