That's really disheartening. My blood pressure bounces between prehypertension and stage 1 hypertension so I have to be mindful of how my choices affect it, otherwise I'll just have another medication I need to take.
It sounds like your doctor is being careful but a quick search looks like there should be some options to take both Vyvanse and a beta blocker. It's possible your doctor just wants a baseline BP off of Vyvanse first, before reintroducing it.
I also find motivation something that takes work. One strategy I use is to write down before bed one big thing I want to accomplish the next day and just a few small ones as well. By keeping the list very small I find it much more doable and everything I accomplish after is just icing on the cake if i'm feeling good about it.
For tasks I find difficult to start, first asking myself why I'm doing it and then using Chat GPT to help me break down the task into clear and manageable actions helps a lot. If I can get a first easy action done, the next comes much more smoothly. And the great thing is that if any action seems daunting, I just ask the AI to help make it more manageable. If I still feel like it's not enough and the outcome is important to me, then I ask my partner (or an accountability buddy) for a little help and tell them the next action that's holding me back. It ain't perfect but i've found chatGPT or Bingchat a big help in organizing and defining unclear tasks. I am careful though of not using it with sensitive or personal info. I figure anything being prompted could end up as public info and is definitely will be data mined.