Pay the cancellation fee and learn from it, to read the terms and conditions before you buy.
Then in the future, depending on your needs, use alternative applications, like many of the excellent Affinity programs such as Affinity Photo (vs Adobe Photoshop), Affinity Designer (vs Adobe Illustrator), etc. that are an affordable one-time purchase. Likewise Luma Fusion video editor (on iPad) instead of Adobe Premiere Pro or Final Cut.
Then in the future, depending on your needs, use alternative applications, like many of the excellent Affinity programs such as Affinity Photo (vs Adobe Photoshop), Affinity Designer (vs Adobe Illustrator), etc. that are an affordable one-time purchase. Likewise Luma Fusion video editor (on iPad) instead of Adobe Premiere Pro or Final Cut.