As long as you are in a calorie deficit, it doesn’t particularly matter what you eat, it’s all about the calories.
Work out your Tdee -that’s your total daily energy expenditure. To lose weight reduce that total by 20%, remembering to recalculate as you drop weight.
https://tdeecalculator.net
Sign up to My Fitness Pal and accurately weigh and log everything that passes your lips. I’m talking every scrape of butter, every glass of wine, every spoon of olive oil or whatever. Just EVERYTHING. It’s a pita initially but, once you have your favourites saved and your recipes inputted, it’s really easy to add your daily food. Just don’t add exercise to MFP or it gives you the calories back to eat and ruins any weight loss attempts.
It is a real eye opener and shows you where you are going wrong and helps you make better choices. I honestly wish I knew all I’ve learnt years ago, I’d have been a lot happier. Over 4 stone down, and maintained for 7 years, thanks to the above. I still have chocolate and crisps, but will have less calories in my meals if I choose to eat them. I will go and find you the tdee link. I’m 5ft9 and, thanks to a swede job, my calories to maintain my weight are just 1,790. To lose weight it was a lot lower, which I found impossible, so I initially upped it by a couple of hundred calories. It meant I lost slower, but it was manageable and I didn’t end up thinking it was impossible to stick to. Iirc it suggested 1,300 calories for weight loss, I did it at 1,500 mostly, with a few days at 1,300.
Fill up on fibre -chickpeas, lentils, chia seeds etc, and lean protein. My lentil lasagna has only 400 calories in and leaves me stuffed!