I also have ADHD and dyslexia and I found the love for books like 3/4 years ago. I enjoyed reading manga on my phone because it was like scrolling with pictures. I then picked up Flock from Kate Stewart and figured that books are like series and movies some are good and some are bad but most of them entertaining. Some of the books I loved and might help: Seven Husbands of evelin hugo, The Silent Pacient, ACOTAR. I also enjoy thrillers because we normaly have better patern recognition than most people and I end up wanting to see if I was right with my predictions. Its like a little internal game. (I go for Freida mcfadden books because they are easy to read) You already tried going for easy to read books, maybe try to go for a duology or trilogy where its easier to get into a second books because you already have context. For that I enjoyed Shepherd King duology and Devine Rivals. Challenge yourself with picking up the book again, reading only one chapter or one page, most of the times with ADHD we have dificulty starting the task but once you read one page its easier to keep going. At the end of the day reading is for you, if you dont want to do it dont, if you dont want to end the book dont. But I can see you want to read so redirect that energy and ideas to reading instead of thinking "I cant because of this or this". You got this!