Hey! I've been making digital collages on and off as a hobby for the past few years.
Figuring out what photo editor you want to use is the best first step. I use Photoshop, but a good free alternative is GIMP. Once you've figured out what you wanna use head to youtube and find some basic tutorial videos.
Next you should go hunting for source images. the process is different for everybody though. Some artists will have an idea of the images they want to use before they start. I personally spend a bit of time when I'm bored on Google Images, or Flickr and save images I find interesting in a folder to use for later.
This is all I can think of off the top of my head, but if you have any specific questions lemme know.
I have adhd too. I clip as I watch tv and I make multiple collages at the same time. Helps me keep stimulated.
What I did was get a couple of these and use them to organise my magazines. I also have separate folders like this where I put my clippings
I bought myself a portfolio to put the ones I really like in. The rest stay in the sketchbooks I glue them into.
https://www.amazon.com/dp/B097268MQK?ref=ppx\_yo2ov\_dt\_b\_product\_details&th=1
This is the absolute best sketchbook I've found so far for collages. It's got good thick paper and it's affordable.
https://www.amazon.com/dp/B06XTMHJPC?ref=ppx\_yo2ov\_dt\_b\_product\_details&th=1
No worries. I wouldn't mess with Yul or Telly. Looks like someone has though...
Anyone tried anything like this: krylon easytack repositionable spray?
Will it leave a residue that might affect further layers of paint or marker etc?
https://www.amazon.com/Krylon-K07020007-10-25-Ounce-Repositionable-Adhesive/dp/B000A8AYO4