Eat adequate protein every single day, and enough fat to help you feel comfortable throughout the day. Limit everything else you consume besides those things. Put your scale in the closet for now, and just stick to that way of eating. Get the scale back out in a month or two, and rejoice.
It’s the calories. Plain and simple. Double check on an online calculator what you need to eat to lose weight. My guess is 1500 is too much. That’s maintenance for me - if I ate that I wouldn’t lose. No one can tell you your sweet spot though - but use a calculator and go from there. If you aren’t losing that’s the issue.
Carbs aren’t the problem. Sure, if you want to do keto fine. But even with keto, if you eat too many calories you don’t lose weight. So, I’d worry more about the calories than type of foods right now.
Change the food. No pasta. Limit carbs to veggies, rice, maybe some corn tortilla chips, and limit your intake of those foods. Eat some sweet grapes or banana with peanut butter for dessert instead of sugary treats. Drink a huge glass of water before you eat.