Ok, so the first thing I did was cut all the pieces.
Once I had them all cut I started with the inside pockets (piece C).
Fold the fabric lengthwise top and bottom. Top one, fold 1 cm first, press, then fold again at 2 cm, and press again. Pin in place. Bottom one fold at 1 cm, press.
Stitch top hem.
Design your pockets. Draw from top to bottom leaving the needed space in between. For example, if there is an organizing box you want to fit in then measure its width and add about 2 cm (1 in), and draw the line.
Then for your pens, knitting hooks, and needles, leave enough space so they will fit after stitching. I left about 2,5 cm or 1 inch.
Place the inside pocket to the inside fabric, matching up the bottom line and side raw edges.
Pin to secure then baste stitch the bottom in place.
Stitch along each line. Set this piece aside.
Now place the outside fabric right side facing up on top of your batting or interfacing. Make sure you match the sides and all edges. Pin in place.
Stitch the bottom line and the line where approximately would be the pocket edge {that should be on the other side once finished}. You can put all 3 pieces together to make marks and be sure then remove the inside piece.
I decided that I wanted horizontal and diagonal stitch designs on the bag, you can make any design you like. Since I can’t stitch with the pockets I started the design on the outside only where the pockets should be for now.
Then place your batting or interfacing piece on top of your lining piece wright side facing down. Make sure your design stitches and the pockets are aligned and that all edges match.
Finish the design stitches all over the piece. Set this piece aside.