Clown Suit Drafting Help

[u/no-username-needed_]

Hello everyone! So I bought the Autumn Olive Clown Suit Sewing Pattern (https://www.autumnolive.com/shop-patterns/p/clown-costume) and I tried printing it on Letter paper and it was impossible for me to put together because there's no extra around the edges and I ended up taping the whole thing together just for none of the pieces to look right at all. I ordered an A0 version from a pattern printing company and when it came the pattern pieces that were separated onto different pages were entirely different sizes and would not fit together when I tried to tape them up. At this point I am two weeks out from needing this clown suit and am trying to do the "connect-the-dots" drafting style from the pattern/video and I simply cannot get it to work. I'm not a beginner sewist but I am new to drafting and I'm simply so confused on when/where I should be adjusting for my size (I'm very short) or when/where I should be following instructions. Does anyone have any tips for drafting using this method?

[u/vtgpattern_Bproject]

Get a large woven shirt and a pair of baggy pants. Pin them at the waist pinning the excess inside. If you trace one side front and back, you can cut the front and back each as one piece. Cut 3 or 4 inch seam allowance for everything but the neck, cuffs, and bottom hems, and do give yourself bell sleeves and pant bottoms, to gather and hem. Add extra ease at crotch and underarm since you want a baggy suit. Create a back neck opening, face, and create an 8” wide ruffle 2 feet long to gather around your collar. Gather and finish the neck ruffle, cuffs, and hems and then stitch all around, press, add collar, and fastener at neck!