Adobe has prevented me from opening the apps in my purchased 2012 Creative Suite 6

In 2012 I one-time purchased the Creative Suite 6 discs from UCLA Los Angeles CA & downloaded them to my Mac. Some years ago Adobe began charging monthly subscribing for new Creative Suite users, but I was still able to open & use my already paid for & owned apps. However, Adobe has now managed to manipulate my laptop and blocks my ability to open any of them via a window offering a 30 day free trial to try the new Design & Web Premium and states that use to it can continue only with a monthly subscription. I now simply cannot open any of my own one-time purchased CS6 apps, such as In-Design and Photoshop. I have no clue whether I could return to my own apps should I accept the offer and cancel before the 30 day limit; I also don't trust Adobe at all that they would not do anything further to prevent that. I don't understand their right to do what they've done. I therefore want to disable the wall they have imposed and once again be able to access my own already purchased suite apps. I did call Adobe who only directed me to this community. Perhaps someone out there can help me. I still have the original discs and all necessary information about the purchase. I don't think they even offer a discount to Seniors. I'm 80 years old, on a fixed income. I shouldn't even have to. Thank you for any help you can give to me. Regina.