I love writing...

Now, how do you define the worth of art?

I don't even know which writing you are referring as - creative, academic, content...

We as writers are artists. If worthiness of art is proportional to its commercial success than more than 95% of it is worthless.

Just one per cent of artists achieve success in their life, even the great ones like Vincent van Gogh, were not successful in their lifetime. Did their art become unworthy?

No, as art has very subjective relevance to people.

If right now you are going through nonsuccess, (I will not use the word 'failure') then you need not give up.

For people like me, writing is the only thing that delights, takes the stress away, and is cathartic.

If writing is not doing that to you then, maybe, it is not for you.