I did keto for a while and it’s really hard the first few weeks but then after you get in ketosis it’s much easier. You can’t have bread at all on keto. The only carbs you should eat are green, non-starchy vegetables, which are easily under 20g of net carbs a day (net carbs=total carbs minus fiber). Focus on meat, cheese, and green vegetables. I lost a good amount of weight with keto but it gave me gallbladder and stomach problems so I had to stop and ended up 20lbs higher than I was before. So I don’t know if I’d recommend it, but that’s how to do it.