Awww, thank you~
As for tips, all I can say is practice makes perfect. It takes a lot of revision to make a story and sometimes dialogue can be difficult to juggle. From what I can say for you right now, just write about things you enjoy, take one step at a time. Format wise it's a little congested with one sentence lines. Try paragraphs of about 3-5 sentences and spaces between them, give something for the reader's eyes to ease into and make it easier to not lose their place in the story. That can make a world of difference when telling a story to a large audience of varied reading levels.
The eyes themselves can become strained in a congested format, so this method can help lessen the burden. Same can be said of very large paragraphs which you tend to see in the bigger known novels that aim for a more experienced reader base. They have larger paragraphs in terms of number of sentences and go in major depth with details (J.R.Tolken is an example of this) so people not use to large paragraphs can get lost.
Also, remember that if you're writing a story, have fun. It's going to be difficult to write something you are not passionate about so always make sure you can laugh, cry, and feel the feels with your characters. I can sense you really enjoy writing homestuck fanficition, and it's good to have a start. When you feel ready, try to write original stories with your own characters once you feel you've had enough practice. And always pick something you're really inspired by. Whether that's horror, fantasy, fiction, non-fiction, you get to decide that. That's the wonder of being a creator.