Hi! Nice to see you here too. Your English doesn't seem that bad. As for weight gain I had a brother with the same issue,, in his case he has a really fast metabolism. To make a long story short, he no longer had that problem he took all my work- out journals! Now he works out to avoid getting fat. 😄 Look I started working- out when I was 15 years old and skinny myself, my reason? I had started getting very sick and was tired of the many doctor tests. I said enough! And started doing home exercises, I was a kid and zero budget. If I did it so can you. First, you need to learn about clean protein, such as nuts, beans, clean meats (if you're not a vegetarian), and as for exercises you will need to slowly gain strength. I predominantly have always worked-out from home. For now look around your home, can of beans work as weights as you grow your strength fill milk gallons with sand use these and large rice bags. Use your imagination to imitate basic FREE WEIGHT exercises. Always warm-up and warm-down (this helps against injury), street low for the first month or two and LISTEN TO YOUR BODY, if you feel a sharp pain STOP lower the weight or stop that exercise. Work-out 3-4 times per week or every other day. Sleeping by 10pm is important, sleeping is as important as doing exercise and eating right. You can do this! By that way, the brother I mentioned was born with eyesight issues too. Hope all this helps you.