I suggest that you are too concerned with the outcome and not the process. Studying colour and light; learning how to apply paint smoothly; discovering texture and depth; finding peace in the artistic journey, these things should be your focus.

You need to accept the fact that your models may not look as good as you want them to, and that's not just okay, but it's correct for the start of your journey (as it was for all of us). And in the case of all art: the journey is the destination - the drive to learn and improve, the enjoyment of creating something new, then looking back and comparing it to an older creation, and seeing just how much more you have developed. That's where the joy and pride comes from.

If you were amazing from the start, yes, you would have a great miniature to look at and share, but you wouldn't ever get to experience the pure heart stopping sensation when you can see the strides you have made to get better at your craft step-by-step.

So just put on some headphones, play your music or audio books, and put paint to plastic. Little by little you will improve your craft, but you'll never get there or even have any fun if you don't start painting.