AITA for refusing to give my brother and his boyfriend my inheritance money to pay off their debt?

My (23F) father passed away about a year and a half ago. He left me his whole inheritance money, which was an insane amount. I was shocked, and because of that, I didn't tell anyone about it. It was a tight-keeped secret, I used most of it to live a comfortable life, while also using an amount to buy a house for my and my mom. This house is located in the countryside, so I can escape the concrete jungle and come closer to the nature. I furthermore spent money for my studies, which I could not afford before, because of money. My life was overall quite better since I have the money, and I am extremely thankful to my father. <br><br>My brother (26M) was very bitter about this, but since I was protecting my identity, he couldn't sue me, as the court couldn't find any money on my name. He's been very bitter about it, so I developed distance between us. <br><br>I don't share my money with anyone. But my brother found out, and he and his boyfriend started bothering me and asking me to give them some money, so they can start a bakery. They got upset that I am not sharing it, and I said I would not share it with anyone, which they used to plug me because of my selfishness. But I said I needed to keep it for myself, and that I am not responsible for their money management. <br><br>They said I am selfish if I don't help them, but I told them I would not share it with anyone. I said I am not responsible for their money, and they kept pressuring me to give them the money, so they can pay off their credits. I kept refusing, so they started yelling at me because I would not let them have my money to pay off their debts. I also got called selfish, and my brother said I would be responsible for their financial situation, which I refused. <br><br>I told them that if I gave them the money, it would be like throwing money down the drain, because they obviously did not know how to manage it. Then they said I would be a terrible person if I would not help them. <br><br>My friend said I am acting like a selfish bitch, because I would not give them the money to pay off their debts, but I said I am not responsible for them, and that my brother and his boyfriend should practice money-management and be responsible before they ask me for help. I am being called a lot of bad names because of my refusal to let them have my money.<br><br>&#x200B;<br><br>Edit: <br><br>My brother and his boyfriend are not starting their own business, they are paying off their student loans. I am also no contact with them since they called me a selfish bitch. I am sorry for the confusion.