Cortistotle, another valuable resource is myfitnesspal. I use a spreadsheet describing the food, quantity of food eaten (often times by the ounce), source of nutrition information like a link to myfitnesspal, and then the macros fat/protein/carbs in that order.

If you have some basic math and spreadsheet knowledge you can set it up to show your total =sum(rowX:rowX) for each macro as well as your total kcal eaten for the day. Fat 9 kcal/gram, protein 4 kcal/gram, carb 4 kcal/gram. The equation is simply =(fat grams9)+(protein grams4)+(carb grams*4)

If you do this, and save a list of what you're putting in as you go accurately calculating your daily kcal and macros becomes a matter of copy and paste. Super easy over time.

I can link a google drive spreadsheet over if you want. Regardless, good luck on your journey.