Just no......
Change your lifestyle/eating habits - short term meal replacement stuff is not the answer.
- Eat clean (anything with more than 4 ingredients in/or anything that you don't know what it is don't eat it)
- Drink lots of water
- Stay off high sugar/fast food/processed food.
- Do some exercise - walking/cycling/swimming - anything is better than nothing.
- Eat less than your burning. As Feek says - calorie counting is pretty simple with a load of apps out there
But you need to change your long term habits - short term weight loss is easy - but as this thread shows, long term is much harder to keep it off. But if you change your habits, it becomes simple.