@miriamf Hey OP, I'm currently cutting at 1700-1800 cals. I'm 6'0 ~198lb right now. Doing a sort of recomp/fat loss and feeding off some delicious noob gains. Protein is essential for you to not feel as hungry throughout the day as well as build muscle, so it's good to fill your stomach with protein rich foods. Be aware that not all protein sources are created equal, and WHEY protein (in context of protein supplements) is more or less the king as it has complete proteins assuming you're buying decent stuff. Eating protein alone won't do anything without actual progressive overload when working out.
I eat 160-180g of protein a day and that's fairly difficult at my intake. I was munching on protein bars for breakfast for a while but then I got into meal prep and that's been helping me out. For example I've made some breakfast burritos and they have 42g protein and 420 cals. Not the tastiest and it gets old after a while, but you can spice it up if you have different recipes.
As for protein supplements, pretty much everyone can benefit from having a tub of whey in their home (if you're not intolerant to it) but definitely get your protein from other sources if possible. Some people like to make a shake in the morning that's fairly similar in macros to my burrito in terms of protein & carbs, but personally it doesn't fill me up the same way.
All of that being said you'll need a fairly strict diet and exercise regiment, as well as a minor surplus of calories if you're not looking for a body recomp the same way that I am. Some people like to hard cut and then eat 2-300 cals over maintenance for a lean bulk, others like to do a deficit while continuing to lift to try and maximize muscle gain and fat loss simultaneously.
I consider myself to have a pretty severe past of eating disorders and unhealthy habits that made doing this initial change hard. I've used food as a crutch my entire life and have ate my feelings nearly every day for 30 years. If you have any questions or need anything and feel like I might provide some useful information for you, just let me know and I'll help you out.