i really like the yellow flowers, but they are weeds # `5 [' i7 i0 V8 G c, x! V4 t0 ~7 K5 X& Q
if you really like grass, buy new one like other suggested. Or you can buy a shed, or remove the grass and make it concrete and build a nice patio, or a big deck.
My lawn used to look like this! But after I use GreatLake Lawn Care for 3 years, everything is back to noraml. I paid about $350 a year and it includes everything from weed control to fertilizer, seeding, etc. As many people said, it takes time. Don't expect to get all the weeds out on one application.