You can also, buy a new pc, for cheap, relatively speaking-few hundred, if willing to keep the monitor you have. Staples, had a sale this past winter, got myself a Great Bargain on a laptop. Barely more, than the pc I bought, a couple years ago, post-divorce.
If spending stresses you, how about, like some people have, vacation savings, a slush fund, for some splurging? a latte fund, so to speak.
Was someone, in your fam, so tight about $$ Do you know where it comes from?