Which brings me to a question...have you ever finished anything you've started? Do you have more things on the back burner; the infamous pile of "I'll get to it later"? Maybe you figured it's not worth it because of what others have said. Granted, there are people who cannot write well but I am speaking to those who know they are gifted to etch pen to paper, or stamp key to screen.
So, for those procrastinating on writing because of crappy things said to you: get off your hind parts and start! Geez! He's rude. It may sound rude, but there are times in life people need a fire under their feet to get them moving. I can't tell you how many times I've said, "Hey, that would make a cool story," and did nothing about it. Honestly, I wasn't sure I had it in me. Yes, I've written things for school, and articles for an organization I've belonged to, but I thought those jobs to be minuscule. I truly felt you needed some massive training, degree, or job entailing tons of writing experience in order to script a novel. Not so. In fact, when I first wrote my first draft, I thought it 'neat' until other people liked what they heard.
Hmm, maybe I have something here. So, with God's help, I pursued it. Now, I have two novels published, one to be released, another awaiting contract, two more completed, and another half-done. Whew! Those works may be on the back burner, but I shift my pots around and let some simmer while I add ingredients to other masterpieces, and all of it done despite what others have said.
Do not quit, stop, or just plain forget. There may be something hidden in your words, a story to tell, a testimony to share, which could change the lives of people who read them, forever. Never underestimate your potential by accepting doubt, negativity, and disbelief as the final verdict. Those words are DREAMKILLERS!
Now, I'm talking about verbiage expressed by family, friends, fellow authors, etc. You name it, there have been folks who've either said harsh things to crush my dream or remained silent, saying naught, and being just as uncaring.
But you know what? It didn't stop me. Accept what others say about your writing and you might as well tie some strings to your limbs, head and buttocks and let them control you in life; be the puppet they want you to be. OOOORRRR...do what you know you are capable of doing and start your dream. And now is as good a time as any. I look forward to seeing your works published.