How hard is that to do? Can you just make general estimates or are apps and such that help out?
There's someone I'd like to encourage if it seems like a reasonable route.
Not terribly hard. Just use basic on line calculators for energy burned and then calculate your daily caloric intake using published caloric counts for the foods you eat regularly.
My wife and is using a fit bit watch to help her, but it really isn’t required. My doc was so impressed with my results that he is following the same plan. He lost 24 lbs in a year.