You know, you don't have to be trained by anyone character that is canon. Just be force sensitive and find a jedi holochron in one of your travels or a family heirloom that no one has opened in generations or just come across a tribe of force sensitive people in one of your adventures who help you learn the force, or even have a ghost of your ancestors who were jedi centuries ago show themselves before you during the right time and teach you. I mean you have a shit ton of options.