@Kooky_20 sure, you could wear it as a cuff. Depending on your knotting style and thread size, it could be a little long tho. Just measure your other alphas to check how many rows per inch you normally knot to decide how long you want your finished bracelet to be. You might want to eliminate a few rows from this pattern to make it fit.
@colorsun1 check out the YouTube video by HandMadeLenin on loop inside a bracelet to learn how to do the straight edge and the hole. For the tasslels I recommend the video by Nadiya's Bracelets but you will also find many more if you search for friendship bracelet tassels on YouTube.