I'm worried for your mental welbeing. You are here. You are still seeking connection. That's good. But your surroundings and the people you count on are not the best, probably not even good enough.
You will benefit from having more perspective and from finding out what your specific needs are. The goal is to focus on yourself. Perspective is learning about the experience of other people and try to apply that to your life. Finding out your needs helps to understand what makes you move and the direction you go.
For example: You say the person that left you was your world. I believe you. The world may seem very large, but our reach might be very short, even limited to our own selves. What does that person have that fulfill you? How can you get that without them?
I don't know you, so I don't have the right words. Like the others here, I wish you well and hope you can get to a tomorrow in which you are happy.
- Something to think about: https://www.youtube.com/watch?v=aZohcMJrvGs
- Something from someone that always cheer me up: https://www.youtube.com/watch?v=UT4PRHQZcgQ
You might not be noticing it, but you're gate keeping cycling. E-bikes created a bridge to an activity that would not be feasible or up for consideration for a lot of people.
E-bikes make riding easier and that's the point. I have done a lot of things to my bike to make riding more enjoyable. Give me a professional bike and I'll be for sure faster and less fatigued at the end of the same route, or I might take the opportunity to go further in my explorations.