If you haven't created a 'copy and compact' document yet, you'll be greatly helped to print out the instructions of the articles mentioned above. However, I'll briefly go over the basics here.
The photo above shows a finished page of step-by-step instructions from a video, by Natalie Trenh, for making two matching open spirals from wire. Fortunately, the 'video' consisted of still photos with text - so it was a simple process to pause the video, use the Snipping Tool, copy the text and photo, then paste and save it into a document.
The document had been set up with two columns, each of which is slightly smaller (column edge to edge) than the standard 4" wide vertical index card. If you wish, you can format for a larger index card. (They also come in 5" x 8" size, if you'd prefer a slightly 'easier' read.)
It is then a simple process to carefully trim the columns, and paste them onto an index card. Use a pencil to 'outline' a section of text and photos that will fit nicely on the card. Choose where to separate the text, if there is not a 'natural' break, so it will a) fit well on the card, and b) be easy to 'splice together' if needed.
Although you may immediately grab your scissors, please consider: You absolutely cannot cut an exactly straight line with scissors. You can cut a fairly straight line - but it will still have tiny waves in the cut - and may not precisely match another cut. This is important when you are splicing text - especially if you have a 'small accident' and cut a photo! If you're not a 'semi-perfectionist'.... use scissors.
Scissors with l-o-n-g blades are preferable. They allow you to make a long cut without having to use a 'scissoring action', as you would with short-bladed scissors. Before cutting, pencil a line close to the photo or text, using a straight edge (a ruler or the edge of an index card), then try to cut exactly on the line.
Successful scissor cuts are made by turning the paper, not the scissors. You get much cleaner, smoother cuts when you just 'meander' the paper where it needs to be cut. Slowly close the scissors in the cutting action as you move the paper. This 'pro' maneuver is much more important if you are cutting curves, turning corners, and doing other 'design cutting' - but it helps with 'straight cutting', also.