Help me buy new computer

Hi, my name is Deborah Lester. I am 16 years old and I live in England. Ever since I was 13 I started playing video games with which I am simply distracted by stress and problems. I have a nice family, I have a mother and a father, and I have a younger brother. My computer was bought when I started school and it's ordinary. My family doesn't have much money and we could never afford a newer or something better. I love playing games, but most require a better video card or processor. Most of the games I try to play don't even open them for me and give me the mistake of having an older video card than the minimum requirements. My parents take care of me and my brother and they barely have enough money, so I can't ask them for a new computer. I'm still too young to work and raise money (I've already tried). I don't want something expensive and fancy. I just want a slightly better computer with which I can play my favorite games without lag and be among my friends on the Internet. Please help me. I know it's stupid to ask people for help like that, but I don't have another option right now. I uploaded pictures from my setting so you can see what I'm using. Even just sharing the link will help me a hell of a lot. I just want one good present for Christmas. I have disabled band wire transfer because I don't have one. I'm using paypal with my mother's card. Thank you so so much if you even shared the link.