First - Where does your motivation come from? Is it an emotion, an image in your mind, a place and how it makes you feel? Go deep into that, and the process of painting, whatever that looks like, should become a means of lifting that up and embracing that motivation in a deeper way.
Second - Painting is a process and understanding technique is all about having a relationship between you and your faculties in conjunction with the unique materials and their inherent processes. Whatever you choose to paint with, oil, acrylic, water color, guache, digital, they all have their limits and their sublime qualities, embrace these limitations and qualities as their strength. Get to know the history of pigments for example to develop a deeper appreciation for this kind of stuff.
Of course drawing skills are essential but beyond a faculty in rendering the work of learning to draw is a serious head-trip. Sure it is about developing muscle groups. The eye to see, the arm and hand to capture, but it is equally if not more-so a battle of overcoming the chatter and false images your mind possess and overlays that are not matching what your eyes are seeing in the world and on the canvas. It is about overcoming your own ego because it will lie to you, make you lazy, invest emotion into a mark on the page and make you frustrated and tell you you are not good enough or you are better than any actually constructive criticism. The wepon against all these things is clearing the page and starting over, clearing your mind and looking again, and closer.
It is lazy and far slower to depend purely on yourself, find other people you can learn from take what you can from their experience and repeat.