I walk 5k 5 times a week, how should I start running?

start off running easy for a couple then slowly begin to pick up ur pace i started off doing this now im the fastest one out of males and females on fchs soccer team to the more u run the faster u will get..the more fit u will get to.. ever year since i was 9 i ran faster n fast it takes time so dont hurt yourself i know trust me!!!!!!!!!!