Here are two paraphrased English versions. You can pick the tone you prefer.
Casual/paraphrase 1: I don’t have a lot of money because I don’t have a job yet — I’m still in school. The money I do have comes from my parents or relatives as pocket money, about 1,000 rubles per week. I mostly spend it on clothes and on going to concerts or lectures. I think I handle money well; I try to be sensible and usually spend it on useful things.
Polished/neutral paraphrase 2: My finances are limited since I’m a student without employment. The only funds I receive are pocket money from my family, typically around 1,000 rubles per week. The majority of my spending goes toward clothing and attending concerts or lectures. I believe I manage my money responsibly, prioritizing practical, worthwhile purchases.
If you want a formal version for a CV or a statement, tell me the context and I’ll tailor it.