"I can stand until now because i could get more or less earning from selling audio but i realize that i have spent money, of which amount is almost able to buy a car, for a year."

I can’t understand what this sentence means. All the vocas were used correctly but it doesn’t make sense to me. Even though if I try to translate it in English I have tolerated until now because i could get reasonable price if i sell this radio But after I calculated all the money i spent for one year, (I realized) i could buy a car with the money. (There might be grammer errors. I am trying to learn English.)