Yes vision for africa is a Christian based charity organization helping the needy in education, medical services. There are offices in Uganda mukono.

Do you earn money with steemit? Is it ok/enough for you? Or what is your big benefit from steem

Yes steemit has been able to make some ugandans a living. They get some money for paying rent and food.
On average most uganda steemians earn just about 56usd a week.
You can visit our tag uganda for some related posts.
https://steemit.com/created/uganda