Where did I go wrong? F49 needing to lose 50lb

I started a basic weight lifting (at home, just upper body) in the end of November, added daily walks (4-6km), started eating LCHF (no bread / potatoes / rice / pasta; NO sugar, occasional berries) and some OMAD (not daily.) By January 4th I went down one or more sizes (I don't have a scale) and got really motivated to continue.So I took my progress photo on January 4th and for the following month did the following:Started walking daily for 8-11km a day (almost doubling my previous efforts).Continued with no sugar, no grains / carbs and LCHF dietSTRICTLY OMAD (some days the fasting period would be 18 h, but I still ate one meal. Most days it was 20 hours OMAD. I did a 46h fast twice.) Doubled my weight lifting--from 15 minutes to 30-40 minutes every other day. Also increased the weight from 6lb to 7lb. I just took my progress photo, making sure I wore the same clothes (the outfit that was too tight on January 4th.) NO CHANGES AT ALL. NOTHING. IDENTICAL. So I can't even say that "I didn't lose weight, but my body composition changed." My body composition didn't change. I'm so disappointed!! I'm going to try OM48ish / ADF routine (I lost weight on ADF several years ago, but then gained it back.) I can't increase my physical activity at the moment. If anything, due to weather, I will be walking a bit less. Should I be counting calories? I thought that with OMAD and LCHF (with no sugar, no empty carbs) I could not count. I do not think I was eating at maintenance every day! I spent the last 3 days in a funk--didn't work out, didn't walk, didn't do OMAD (but still didn't have any sugar or grains.) I want to see some progress by April 4th and right now I don't know what to do and WHY I didn't lose anything in the last month!Help!! via /r/intermittentfasting https://ift.tt/ghlCvLp https://ift.tt/Q7LG1Fs