Whether or not this is "competitive at your LGS" is not really something anyone other than people at your precon can answer.
What I will say is that if you're a new player, then I think buying a precon would be a better first step than to straight jump into deck building. EDH precons follow a deck building structure that makes then play smoothly in most games, following a specific game plan while also containing enough basic deckbuilding "vegetables", such as ramp (mana accelerators), card draw and removal, which every deck needs to function.
Starting with a precon also helps because you can examine how they are set up and apply that knowledge to your deck bulding.
What I can say about your deck is that you currently have a bit too much removal in my eyes. I would say the average commander deck runs ~10-12 single target removal spells and 3-4 board wipes. 24 single target removal spells (a lot of which are also just kinda bad) is quite a lot, and it comes at the cost of your deck neglecting other aspects, such as ramp and card draw.
I also think the overall game plan isn't very clear. It very much looks like a deck where you play cards and hope that they end up doing something. The overall card quality of your cards is also just not very strong, a lot of cards are just random draft commons, which tracks with you saying that you built this with cards you just happened to have.
Perhaps you could take a look at Ayara's EDHREC page, which gives you an overview of what other Ayara decks tend to include. This can be especially helpful if you're new and just don't know much about the vast card pool magic has. https://edhrec.com/commanders/ayara-first-of-locthwain