What is the BEST cream/treatment to remove my ugly scars on knees and legs?

Im 16,and i hv tthese,,UGly scars,cause of shaving and all.I;ve tried soo many type of cream,esp.Lanakeloid, and it doesnt work.Plus,its been 2 years now.I can t wear shorts,esp,when badminton session.PLEASE,HELP,IM BEGGING YOU =(