Can someone please help me with determining the net carbs. If the label says Total Carbs and then shows sugars, not alcohol sugars, do you subtract the sugars if it is not alcohol sugar?

Also, should I be keeping track, on paper, of everything I eat so I don't go over 20 net carbs? I did fine at breakfast today but now I am having a BLT cobb salad from Wendy's and trying to pick out the tomatos. Grrrrr! It is hard to do when they have already mixed in tomatos and carrots in a salad.  Any suggestions?

Any helpful hints will be greatly appreciated. This is my first day. :-D

Mickey(Michelle)