Am i choosing the right body fat percent?

okay when i heard my 5.6% body fat was bad for me and i needed to move it up to like 7% and i did in about 6 month and about 1 year later i heard about BRUCE LEE lean body and his body fat was like at 5% so i thought i should cut back to my original fat% but i heard he died from it though? What should i do since he is my idol do i stay at 7%.? im 17 btw