So, i've been uploading my art on my profile, but i just recently noticed that i wrote my artist tag wrong. i wrote "vanillama" instead of "vannillama". i've been reading about this issue but i can't seem to understand how can i change it. is there any way i can change my artist tag? thank you.

Since it has been tagged only on 10 posts, replace the tags with the correct one manually. You can edit tags with the edit button on the posts (located in sidebar and below the image). When you use the correct tag for first time, add art: in front of it to categorize it correctly.