Review on High-yield Ink Cartridge for HP 64XL Tri-color, Compatible with HP ENVY Photo 6200, 7100, 7800 Series, Instant Ink Eligible - N9J91AN by Doug Hinrichsen

I had an old HP printer that used 3 separate color cartridges, photo black and regular black ink. Printing can be 10 pages per week). Bought a HP64XL tri-color cartridge (delivered on the 5th) in Jan 2021 for my HP Envy 7858; here is 02/21/2021 and the color is already dull and uneven! I don't think I even printed 30 pages! $600 a year for ink! I wish I could get my HP7520 fixed, I've had it for 7 years - still printing - but the rollers don't pick up the paper anymore, they're so worn. HP repair shop says they don't make a replacement and can't fix it. Any suggestions?