Hi (numele prietenului),
Hope you are found my letter and read it. Also hope you are doing great. I recently read your letter, where you ask for help about how to keep your body fit.
First of all, you have to do a sport: fotball, basketball, volleyball, cycling, etc. Mostly try to do a sport that involves your muscles in order to burn fat and calories. If you don't want to go for team sports, you can also go to the gym or just running outside. Keep in mind that team sports might motivate you to keep the hard work, while running or going to the gym might be a bit hard to motivate yourself.
Another advice is to set goals when you start to do the sport (let's take as an example, running), set some small distances at first as your daily/weekly goal. Comfort is "king" - buy good shoes and good clothes in order to stay comfortable for longer distances. Also, try to eat healthy - less junk food(chips, coke, etc)
If you find running attractive, try to look for a running partner which might motivate you during hard times.
I hope these ideas might help you in choosing a way on how to stay fit,
Your nicely friend,
(numele tau)
