Need some help with texture Material Please

Hello I have been following tons of tutorials I have made loads of texture materials but I cant seem to get them to look like this texture material grass :

I have tried so much but All I seem to get is noticeable tiling, no mixing so it looks realistic, sometimes it can look plastic too. Is their a way anyone could help me create the same grass texture material as the one shown in the youtube video.
thank you so much

Can someone help ,me please?

Is anyone available to help me with this dilemma as whenever I make a texture it never looks non tiled, or bad. you can always notice the texture materials being tiled no mater if I stretch the map scale settings etc