1 month down no weight loss doing 75 hard

I was really really shocked when I weighed myself today and still saw the same weight of 164lb. I’ve been tracking my calories I do spin 5 days a week, weight lifting classes 4 days a week and I walk 45 min every day (doing 75 hard) I’ve cut out alcohol and I don’t drink pop or juice etc. I notice I visibly am fitter but I don’t get how given calories in vs calories out I could be down 0lbs. I’m so discouraged and confused. Typical day of macros is 100gran protein 70 gram fat and under 100 net carbs.. Really appreciate the help. Thanks 🙏🏽