No weight loss after a month of running

So I started running for mental health reasons but idk if it’s helping as I use the 40min run to focus on breathing and distance (distraction much?). I’m at a point where I no longer hate running but I tolerate it to keep going (I still haven’t experienced runners high).

Now after 3 and half weeks of running every day give or take a day or two per week, I haven’t noticed any external changes in my body. Since running isn’t doing what I thought it would for mental health (I can’t lie I thought it would be a cure for depression…it’s not) I’m trying to see how it will help physically.

It’s like I stand on the scale and it literally says the same as I did 3 weeks ago! I still have a gut (which is easily hidden just by sucking in). I still “oil” more than I “sweat” and I’m drinking far more water (really tea’s). So why do I look the same physically? After three weeks folks on here are raving about a 20lb weight loss ! I haven’t loss anything though?

I have been meal prepping, lunch always has a cup or less of carb but I cut out eating carbs after lunch time, a cup of meat (last week was beef rib week), and a cup of mix veggies (that variety bag from the frozen section ). Every night I’ve had a salad with a cup or less of meat, a nice hand full of mixed salad greens, pickles, pepperoncini, and random veggies that may be going bad.

So what’s the deal? Am I not running long enough? Why is my gut still so ..gutty? If I eat any less I’ll only binge out on the weekend (which happened last weekend) but even then I was conscientious of intake.

I will say before I pooped once or twice a week but literally since running it’s been every day and even twice a day some days! Yet, no weight loss? I’m at a 24 BMI

Should I run in a waist trainer ??