@AngelinaKizz it's pretty easy to switch from Procreate to Photoshop -- export as a PSD file and it'll open right up in Photoshop with all the layers. You can switch back as well by importing a PSD file to Procreate.
As you're making your decision, here's something to think about: the difference in resolution between an iPad screen and a Cintiq monitor or laptop screen. If you're used to a high resolution, you might find yourself disappointed or frustrated with a lower resolution screen.
That happened to me. I bought a Huion HD tablet (couldn't afford a 4K in the Huion or Cintiq) and couldn't get past seeing the pixels on the screen.
I do have a pen tablet (the kind without a display where you have to draw while looking at a computer screen) and use it for editing in Photoshop. Drawing with it isn't intuitive for me and it doesn't feel as comfortable as my iPad. Most of my digital work is done on the iPad. I use my desktop to clean up files and get them ready for print/to deliver to clients ... usually things that require InDesign & Photoshop.
@Asyas_illos -- don't worry about having to upgrade from Procreate to work full time as a freelance illustrator. There are quite a few professional illustrators who do all their work on an iPad. They might export the file to Photoshop (or equivalent program) if it needs some resizing or final editing, but if you plan carefully, you can do an entire book completely on your iPad. I've done it twice now (well, one or two illustrations might have needed some editing outside of Procreate, but most was all Procreate).
Some illustrators love Photoshop and it is the perfect program for them. For others (and I'm one of them) Procreate fits how they work so much better.