Firstly, gather your essentials such as pins, scissors, any fabric of your choice, chalk (or anything for marking), and the correct thread
Now that everything is gathered we can begin :]

I used another bodycon skirt I owned to trace out my pattern. Your can also do this with a pair of pants (preferably skinny jeans), just make sure the fabric is to your desired length. trace out the skirt and leave an 1 inch seam allowance.
Cut out the two sides with pinking shears to avoid fraying.

Once everything is cut out you can go ahead and hem the bottom of your skirt.
I decreased the seam allowance to half an inch just to make sure that the skirt will fit me snug and not too tight.
After a few minor alterations you can sew both sides together.

Once done, flip your skirt inside out and give it a try. If the skirt is too loose on some areas you can pinch that area and pin it down. make sure to mark a line that connects from where you originally sewed the skirt to where you need altering.
To finish hem the top to complete the skirt.

And vuala! you have made a nifty skirt.
If you have complications making this, a link to a video that inspired this creation is in the description box.