Yeah, I do all of that stuff. I started doing it initially because I couldn't really afford to pay someone to do all of it. Bought a book, got a copy of PS, and away we go. I'm not a good designer - very poor actually. I make up for it by going to Shutterstock 1x every 3-4 years, buying a monthly membership, and downloading 400-600 stock illustrations and graphics. I then take those and convert them to my needs. It's not great but it works "good enough".