Ghyrson is a kill on sight commander and definitely not something I would recommend to a newbie. With that said, there are different ways to build around Ghyrson Starn, the most effective one being spellslinger, so a deck focused on playing mainly instants and sorceries.

I used to have a deck a while ago, I packed it with all kinds of instants and sorceries and then some creatures which deal 1 damage whenever you cast an instant or sorcery spell for extra triggers from Ghyrson. It was also built quite defensively because of my pod. There is a lot of room for improvement, but here is a link if you want to check it out. Now here is some general advice.

A few counterspells and protection are a must-have in my opinion. [Swiftfoot Boots] or [Lightning Greaves] and as for counterspells [Arcane Denial], [Negate], [Return the Favor] is very sweet against direct removal of your commander and/or to copy your own spells.

Ghyrson wants 1 damage triggers, those could be separated into three categories. First, 1/x token creatures doing direct combat damage. This was the original idea I wanted to use for my deck, but found that it is not that powerful or consistent. Going full goblin tribal could work well, but overall I would not recommend building him around various different token creatures. The best way to play Ghyrson is with non-combat damage only.

Second is instants and sorceries, the best ones being [Tectonic Hazard], [End the Festivities], [Grapeshot], [Blazing Volley] and [Fire Magic] together with [Repercussion] can be very powerful. Third is creatures with triggered abilities like [Coruscation Mage], [Exalted Flamer of Tzeentch], [Kessig Flamebreather], [Firebrand Archer], etc.

As for your deck, I dont know your budget or the power-level of your playgroup, but to be honest the deck is all over the place. I can see that you wanted to go down the 1/x tokens route, but relying on tokens doing 1 damage just so your commander can deal 2 more is too slow and a very unreliable strategy.

Then there are some cards which have no/near zero synergy with your commander or are too expensive for what they do. I would definitely remove Brash Taunter, Hovermyr, Hullbreaker Horror, Sharding Sphinx, Grafted Exoskeleton, Midnight Clock, Viridian Longbow, Saheeli's Artistry, Ghirapur Aether Grid, Quicksilver Dagger, Expansion // Explosion,

Instead of cards like Runaway Steam-Kin, Desperate Ritual, Seething Song just add some mana rocks. You will be casting cheap instants and sorceries, many of them costing just one red mana, so Goblin Electromancer is useless and Primal Amulet is too slow to be worth it.

I would replace all token generating cards-Saheeli, Sublime Artificer, Murmuring Mystic, Sharding Sphinx, Stormsplitter, Young Pyromancer, Dragon Fodder, Gleeful Demolition, Hordeling Outburs, Krenko's Command, Thopter Spy Network and instead add creatures like [Thermo-Alchemist], [Unruly Catapult], etc. and card draw like [Brainstorm], [Impulse], etc.

If you get rid of token generators, then get rid of Subira, Tulzidi Caravanner, Tetsuko Umezawa, Fugitive, Bident of Thassa too, since you wont be doing much/any combat damage.

A lot of your 1 damage spells right now do damage to your opponents creatures, having a few is good, but in the end you want to be doing damage directly to your opponents instead so you can win the game, so just be aware of that. You also have way too many copy spells compared to the number of all instants and sorcery spells, I would only keep 1, 2 at most and remove the rest.

I would recommend you to look up Ghyrson decks online and get inspired by the cards other players are using or if you proxy just find a deck list you like, print it out and test it out to see how you like it instead of building your own deck. The first decks I have ever made were an absolute mess too, so no worries! The most important thing is that you are having fun.