You can download old Photoshop CS2 from Adobe themselves. They released some universal keys for it so you don't need to pay for it. For making avatars and signature images it's totally fine as half the time you only need the crop tool, some brushes, and a few filters. Anyone that says you need the latest kit for hobby stuff like that doesn't know what they are talking about.

The only people who need that gear are professional artists, or graphic designers, and if Google images is the way you collect your resources for a piece of art... [url=https://www.kotaku.com.au/2012/09/artist-disappointed-that-borderlands-2s-manual-art-swipes-from-his-designs/]then you're not a proper artist. [/url]