I would attempt to eat 3/4 of my weight in grams of protein. I live in the US so using the Imperial system, if one weighed 200lbs, then I would aim to eat at least 150g of protein per day. Small things add up - meal prepping chicken breast for lunches through the week etc etc.

Keep in mind by eating more protein your body has to work harder to digest it, so even when you are sedentary you will have an increased metabolic rate and higher calorie burn.

It's all a numbers game. 2000 calories a day to maintain your body weight, less than that to lose weight and more than that to gain weight.

You don't have to break the bank either, buying a simple protein powder and mixing it with milk when you get home from your workout will do the trick.

I might suggest adding "supersets" to your workouts as well to increase the intensity which will build strength, and burn fat. EG: Do to workouts immediately with no rest. Bench Press into Curls, Military Press into Landmine Press.

To be in decent shape , it’s 70% kitchen 30% exercise unfortunately.
The old saying ‘ you can’t out train a bad diet’ is bang on.
I use diet whey protein after a workout, from my protein.

Other things to consider which have a big impact are sleep (8 hours per night, at least 2-3 litres of water per day, manage stress, aim for 30g fibre per day, adequate protein is ESSENTIAL other wise you will not only lose fat, but muscle too which is obviously a big no no.

In between sets, instead of resting and doing nothing, keep your heart rate up by doing jumping jacks, step ups etch this will burn more calories too.

Vary your programs at least every 12 weeks. Your body will adapt and get comfortable and then plateau.

Try and increase weight or reps on each exercise from the previous week, for example if you bench pressed 50kg week 1, aim for 52.5kg the following week and so on.

PROTEIN PROTEIN PROTEIN

IMO weight training is better for weight loss than cardio. (Both are obviously good), but the more muscle you have, the more calories you will burn.

If you don’t like cardio, you can still lose fat from lifting weights 5 times per week and getting 10K steps in per day.

Adequate Protein + Calorie surplus + weight lifting = Building muscle
Adequate protein + calorie deficit + weight lifting = Fat loss

You should have protein and simple carbs post workout, 30 mins or so after you finish working out. Ideally something quick like a protein shake + fruit.

There's a lot of good advice on here, some you'll need to take and apply to your own particular situation. Work out your BMR (basal metabloic rate) and use that a base to work out your calorie intake. MyFitnessPal is a great way to track your meals. I personally think without tracking, it's impossible to get an accurate guage on your nutrition.

La la la your mum

On rereading your post KD you might want to do a bit more cardio. Doing weights 5 times a week is quite a lot, depending on the intensity of course, and as you get older is harder to recover from.
Try to mix it up a bit too - do things like 21s to add an isometric component.