The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
I am 101% sure that there is a song inside of your soul too, that tries to come out every once a while. Write it, sing it, paint it, dance it, play it. Don't hold back.
I strongly believe that if the words are coming from a pure place, wherever the source may be, they will surely find their way into the readers’ hearts.
There are different reasons why people write.
Some write for amusement, some write as a journaling habit, while others write to earn their livelihoods, and then there are some who write for the sake of writing.
So, the crux is that you don’t have to go into a jungle and sit on top of a tree to be distraction-free and write your novel. You can do it at home, given you adopt a new lifestyle and adopt certain habits.