I went on a 0 added sugars diet for one year.
My breakfast was primarily toast made from Natures Own brand bread (which is available at Walmart supercenters for a very affordable price), yogurt, and eggs.
I make my own yogurt which is EXTREMELY easy to do (I hate to do any cooking and prep and even I can do it). You basically get some yogurt from an Indian store which has live culture (you can eat it or throw it out, but you just need a teaspoon as a starter). You boil milk then let it cool to lukewarm temperature. Stir in the starter yogurt. Then put the light on in your oven and put the yogurt in over night. By next morning it will be yogurt. The purpose of leaving the light on in the oven is to keep the oven warmer than room temperature. You don't need to do that if you don't have cool nights where you live.
Dinner and lunch were usually pasta, grilled, cheese, or tuna. BTW, Rao's pasta sauces have no added sugar. They are available for very cheap at Costco. Canned Tuna, ground meat, and fish are also good to get at Costco. Rice as well.
Speaking of Costco, get Raw Honey there. Great prices.
For snacks I suggest nuts and fruit. I consume a lot of bananas and oranges. Also mangoes when available.
Honestly, the only time I was effected by not eating sugar was when people invited me to dinner or restaurant. In those circumstances I often had to just eat what was offered because I could not control the inputs.
Saying it's impossible to avoid sugars is a cliche spread by lifestyle agitators. Its only true if you basically want to autopilot through your life ... then yes ... sugar free food will not fall into your open mouth. Sugared foods will fall in.