You make this tricky to answer :3

If you know what to draw, and if you like the idea of that, then why would you stop halfway?

In this case, I would only suggest you to finish those for me, because I love your stuff <:3

well one thing is inspiration and another is motivation :D its when you have an idea but dont rly feel like drawing but still you have this idea and want it to be done but.... not feeling like drawing at all

Btw, what motivated you to start drawing? =3 Like.. for the first time you picked up a pencil, or the first time you actually shared your stuffs on fa or anywhere else? :3

idk, i just wanted to decribe pictures i had in my head, all my ideas + horses were my life :D

This comes up, not only in drawing, but learning and working for me as well.

For myself I see only 2 solutions:
1. Motivation: You find out what motivated/motivates you to do what you currently need to do and excercise that. I find this is often hard to do as motivation is not a constant thing and what motivated me before may not do so after some time.
2. Discipline: You ignore the feeling of you what you want, but do what you need to do. Often this is hard to start, but I find that after ~20 minutes of concentrated work, it just comes to me and feels natural to continue.

Hope this helps somewhat, I'm a bit more of the organized and methodical person.