I started using fenugreek soaked water half cup a day. Will it improve my breast growth?

Creams and herbs will not work, save your money.Not many good choices to have larger implants without surgery. You can research and try "BRAVA" suction device, or gain weight (not advised). Hormone pills such as Birth Control Pills in many cases will result in a modest increase but is not predictable.Surgery is the most dependable and predictable method using implants or your own fat.

It is unlikely to help with breast growth.  If it sounds too good to be true, it probably is.  You should see a BC PS in your area to discuss your surgical options.

It's very unlikely that this will help you.Perhaps you could consider birth control pills.  This sometimes increases the size of the breasts without surgery.