The magnitude of the challenge

Writing is a difficult business.

Firing up the laptop (or getting the notepad and pens out, or whatever) is easy enough. Ditching the procrastinatory (is that a word?) habits and putting 'black on white' is harder.

Harder still is repeating the process, day in, day out, for long enough to have something to work with.

Then the realisation will dawn, is all this worth it? Have I written anything of value? Am I wasting my time?

I've been to that difficult place on many occasions. The answer is that you have to find motivation of a very personal nature and what ever the objectives of your writing are they must be derived from yourself.

Define your own measure of success.

Writing is possible, it has been done for thousands of years by many different human beings.  Being a good writer is within every one's reach. if you want to be one, its up to you.