A quick (or maybe long) video about how to repot a venus flytrap. It's pretty easy: just pop it out of the old soil and into the new soil. Links for the soil/substrates:

Sphagnum:
https://www.flytrapcare.com/store/gro...

https://www.amazon.com/besgrowZealan...

https://express.google.com/u/0/produc...

Peat:
https://www.flytrapcare.com/store/gro...

https://www.walmart.com/ip/PremierSp...

Perlite:
https://www.amazon.com/EspomaPR88Q...