Reincarnated Escort Warrior

My dream is to become an escort warrior that rides on a cool horse and transports goods But Ive got a limp leg and Im unable to learn decent martial arts Ive lived as a porter working odd jobs for the entirety of my life Until I died because of the mountain bandits that I met during an escort mission
But
I became the fourth young master Lee Jungryong
When I died and woke up I was reborn as the Heavenly Dragon Escort Agencys infamous goodfornothing youngest son
The weakling Lee Jungryong will become the best escort warrior in this life