In regard to weight loss, I managed to lost 40 lbs over the course of 2016 as part of a New Years Resolution - with my physical and mental health in a gutter, I decided to invest my effort and time into health and fitness, and progressed from a lazy, overweight consumer of junk food, into a healthy, active and fit individual
If you like to work with numbers (like myself), a calorie counter can be very useful for losing weight. Increase protein intake while cutting calories, cut junk food, and set a moderate weight loss target of about 1-2lbs a week for long-term, sustainable weight loss. If you like to work with feelings, I'd start with a calorie counter to increase your awareness of better food choices, and once you're used to it, you can use feeling to determine how much you eat.
Remember that weight loss is half diet and half exercise. The recommendation of 150 mins of exercise a week will get you frustratingly slow results - I'd recommend atleast an hour of exercise a day, which can be done easily by going for a leisurely stroll in the company of Mother Nature
Sticking to a routine makes it more habitual to eat clean and get lean, so remember that whenever you feel tempted to reach for that chocolate bar, you're slowing your own progress. Knowing that your actions will delay a long-term goal is a great reinforcer for cleaner eating
Finally, do not use a weighing scale repeatedly. Spending more time on a scale will not force your number down, when you could be using that time to be skipping rope or doing a quick bit of cardio. Weigh yourself no more than a couple of times a week - cannot stress this enough.
Message me if you'd like any help with losing weight - happy to assist in any way I can <3