It just seems to me like mining of Bitcoin isn't that real. I have never seen anyone who says that he/she has successfully mined a Bitcoin. Maybe I must be mistaken.. I just need some insights, please.
You have never seen does not mean that they do not exist. People have been profitable with mining, even more persons than you can imagine.
I don´t want to spend a lot of money, something until 1k will be enough for me. However, I will think about it.
You cannot be serious about really wanting to mine bitcoins for profit without spending a lot of money. The cost of mining is not just in the beginning when you just start mining, there are a lot of associated expenses that come with mining and maintaining your mining activity, you just have to be prepared for it and keep an open mind with your planned expenses.