Extra Sharp Pencil Skirt – Fitting Help

Hi, After admiring and purchasing the 'Extra Sharp Pencil Skirt' I was determined to follow every step and make myself a properly finished garment with interfacing, invisible zip etc. After diligently following all the steps I tried on my finished skirt and I was disappointed. I made some adjustments to the side panels/seams as suggested to try taper the skirt but it didn't really work without major alterations to the side panel which I didn't want to do as that defeats the purpose of the pattern. When I try on the skirt it sticks out at the front and back, like an A-line skirt but from the side. Sorry, I don't have photos as I've loaned the skirt to someone else to try on. I'm determined to get this skirt to work for me so just want to see if anyone else had/has this issue and how you fixed it. After multiple online and offline searches my initial thoughts are that I possibly need to make a smaller size but probably add both a Full Tum & Full Bum adjustment, or is their a simpler fix that I haven't considered? Thanks in advance for your help Brenda.