New computer

Hello!

My name is Alex and I'm a 16 years old highschool student.I was about to get a new computer soon but my mother got sick,therefore I had to give up my money for her medicine.The computer that I have right is about 8 years old,and since I am studying computer science I would need something a bit better.I obviously don't need a crazy expensive one for such a task,I want something that does not crash every 5 minutes.However,there is a possibility that I could get one in like a year or so,but my father's job isn't as stable as I'd like to,so I am worried that things are going to get heavier once college is close.

Thank you at least for bothering reading this!