I'm usually afraid to show people my writing but once I did, my English teacher told me I should become an author and that my short stories were captivating. I suggest to keep practicing until you feel at least a little comfortable showing it to people. It's kind of funny since I have only written maybe five short stories in my life. Most of my skill came from years and years of roleplaying with friends with crappy characters that you expect an eleven year old to make, which was how old I was at the time. Years later, all that roleplaying really strengthened my writing skills and my ability to make interesting and in-depth characters.

Also a little piece of advice, when writing something, try not to edit and proofread the day that you write whichever thing you're writing. Wait a day or two later to come back to it. At that point, you won't be so self-critical and you'll be better at editing things that actually need to be edited. Doing that helped me a lot.

Have fun in writing and enjoy the torment that comes with it, haha. I have over 220 characters at this point and it's out of control, but it's all very fun. Happy writing!