What is at the core of frustration?
Frustration is ego trying to control external reality. Use your mind to create your reality, but you cannot control external forces or reality.
People have free will. Energy changes. Go with the flow and trust that the universe will provide and that all will work out the way it’s supposed to. Just because something doesn’t seem to work exactly in the time you expected doesn’t mean it isn’t working out how it should. It could be a test. It could be a challenge for you. You need to master this to gain inner peace. As you work through task lists and being guardian of your time you are developing boundaries in overcoming the overwhelming attitudes. You will need these skills in the near future as you open yourself up to working in both the physical and spiritual realm. The spiritual realm can be even more demanding as it is vast and infinite. Create energy you want to project and protect it. Project and protect. Once others are unable to dump their baggage on you they will go elsewhere or learn to try and match your energy.