I think it is possible to change, but not easy. It's not something simple like do this one thing every day and you will change your life.

You need to go deeper, understand where that lack of drive comes from. How those behaviours were learnt and almost start from scratch, unlearning them one by one and replacing them with behaviours that you would like to have.

One place to start in terms of career is look at do you still want to go into journalism. You talk about lack of goals or long term plans, is that because you don't really want to go into that field any more? Or is it because these other behaviours are holding you back?

If you really do still want to go for it, then get started with a plan whist you are working on those underlying issues. Break it down into steps that feel manageable to you in your current situation. Then as you grow and improve those smaller steps can get bigger and keep you moving forwards.