That fountain pen sucks so bad, lol. It was my first pen too, and it writes more like a marker than anything
Pick up a large bottle of Noodler’s ink, the 4.5 oz ones. Certain inks come with a free fountain pen. It will either be a platinum preppy or the Noodler’s nib creeper depending on the ink. Imo, the nib creeper is the best budget pen you can get, but my girlfriend loves the preppy so much, she went and bought more of them on their own. Plus the preppy is $4 on its own, and writes decently, especially considering the price.
If you want to spend a bit more on a SUPER solid everyday writer, the Lamy Safari just can’t be beaten. I liked it so much, I went and bought the aluminum version, the Al-Star. I personally prefer the fine point, but the medium nib writes nice and wet, and it feels like writing with butter on hot glass.