Yellow... I gained hella weight in my abdomen area during quarantine and I would like some tips on how to lose that.

I do sit ups and planks at home 3days a week might make it 5 and I eat noodles and eggs and I stopped drinking soda and eating sweets until my stomach flattens

Any tips or foresight into flattening my stomach? I don't want the six pack I just need to flatten it