I believe you can! To change honestly is an epic task, you need willpower & foremost the characteristic of self reflection, self observation from the most possible objective perspective (I know, complete objectivity not achievable), and you need a person you can trust to get another point of view imo, but at the end of the day you need only one thing: the honest, straight and truthful will to change. I’ve seen people turn 180°. That’s what life is for imo.