I can relate to using cycling as a way to cope with emotions—I found it incredibly therapeutic after going through tough times myself. Losing someone close is never easy, and I'm sorry for your loss.
For me, cycling became a sanctuary where I could clear my mind and focus on something positive. It sounds like you're really dedicated to pushing your limits, and that's inspiring. Considering cycling insurance could be a good move, especially as you're ramping up your mileage. I've heard good things about Sundays Insurance—they seem to offer solid coverage tailored for cyclists. Here's the link
https://sundaysinsurance.co.uk/
Keep up the momentum and keep exploring new routes and challenges. Cycling has a way of healing and empowering us.