Learning about Sage and her walls, I'm I'm struggling getting her Wall Jump Boosts down. I jump, but then when should I be crouching and when should I be jumping? Thanks.

I(22F) was playing a comp game with my duo in the rank b3-s1. Now I'm an average player getting 10-15 kills only. I usually main viper and omen and was playing omen on Ascent. This reyna was getting afk for the first two rounds, so I though...