hi guys just joined need your help !!

recently i had my back garden turfed at a cost of £400 this was just for turf and labour

i waited 3 weeks before i used it and in that time i kept it waterd as much as i could it looked really well and green for weeks atfer its first cut and it grew back well and thick

after it had been down a few months i started to notice small dead patches but continued to keep watering and cutting it

now about 4 months on the growth is really bad and just grows around the edges and cutting it fairly fulls up the grass collection box on the lawnmower

when looking at the grass it now has patches of a straw like colour all over apart from the edges and the thickness of the grass is now terrible and can see the joins again

in the hot weather it was drying out alot and i tried forking it to let the water get to the roots because the water was sitting on top of the soil and new growth is now very minimal

please help im a 29 year old guy whos just bought his first house and saved hard to turf the back garden i used to love going out and looking at the turf now i cant look at it

ive bought some grass seed to put down but i really dont know what to do