Cut the pattern pieces from your fabric . Position the selvedges parallel to the center so you can place the front and back pieces on the fold. The pattern pieces should all be placed with the lettering facing up. Always align the grain arrow on all pieces in the same direction and parallel to the selvedge of the fabric. Transfer all notches from the pattern by making a 3mm cut with scissors or chalk. Notch the seam allowance along the fold, as this is always the center. 
You need:
- 1x front part in the fold
- 1x back part in the fracture
- 2x sleeves opposite
- 2x cuffs
- 1x hem cuff
- 4x hood side parts opposite
- 2x hood center section
First, you'll tackle the hood pieces. The long piece will be the center piece, and the other two will be the side pieces. Sew the hood together along the red lines shown in the photo. Make sure the notches line up in the middle and that the cross on the shoulder aligns with the end point of the center piece. 
Once sewn together, it will look like this. Then do the same with the inner hood. 
Place the outer and inner hood right sides together and close the long edge. 
Quick tip: I flat-stitched the seam allowance on the right side of the inner hood. You can also iron the seam on the edge and then stitch the upper and lower hoods together, using the width of your stitching foot.
Next, we'll move on to the top. First, neaten the shoulder seam allowances on the front and back pieces. Then, place the front piece on the back piece, right sides together, and sew the shoulder seams together from the armhole to the notch. Now, press this seam open. 
Next, we sew the sleeve into the armhole. Make sure the shoulder notch is aligned with the shoulder seam and the notches on the front piece are aligned. 
Close this seam and neaten it together. 
Now you can close the side seam and underarm seam in one go. Again, make sure the notches and the sleeve seam line up. Then neaten this seam together and press it to one side. You now have a closed top. 
For the sleeves, you still need the cuffs. Prepare them by closing the side and ironing it in half. This will give you two rings/cuffs. 
Do the same with the hem cuff.
Then you can attach the cuffs and neaten the seam allowance. I then topstitched the seam allowance close to the edge on the right side of the sleeve. 
Repeat this step with the hem. 
Before joining the hood and the top, you should join the overlap of the hood. To do this, simply put the hood on and then place the right side on top of the wrong side. You should sew the hood together along the yellow line in the picture. As you can see, the seam allowance is still showing at the top and bottom of the edge. This is important! So make sure the edge lands exactly where it's joined.
First, attach the hood to the front piece. The red crosses in the photo must line up exactly (pin them together beforehand). Start at the center front and sew to the corner. Then lift the quilting foot and clip the seam allowance from the front piece to just before the needle (green line in the photo). This will make it easier to turn the hood pattern piece to the next edge, and the corner will be perfectly square. Do not pull the needle out of the corner or cut the thread. 
This is what it looks like on the sewing machine. 
Then turn everything so that the long neckline and the hood line up (here: lines in yellow again). Now sew again up to the point where the shoulder seam and the hood corner meet. Cut the front piece again and turn it. 
Now the final stretch to the center back. Again, turn the seam allowances together and sew to the corner, cut the hood, and sew to the center. From the center back, sew the other side in the same way until you reach the center front again. Finally, chain-link the seam allowance for the hood attachment seam. I then topstitched the seam allowance on the top piece close to the edge.