Third, it’s important to let yourself be vulnerable and connect to others. We live in a society that prizes capability and independence, two things that cancer often slowly strips away from you. This was naturally a very difficult pill to swallow for a healthy, able late-twentysomething male, but having to allow myself to be vulnerable and accept help has given me the best two years of my life, which was pretty inconceivable at the time of diagnosis. Vulnerability has shown me what phenomenal people my sister and parents are – words can’t do justice to how much they have done for me. The same applies to my friends – what better way is there to spend two years than being surrounded regularly and closely by these people?

Fourth, do something for others. Against the backdrop of Covid-19, Black Lives Matter and the desperate attempts of migrants to cross the Channel, my thoughts really turned to those who have not had my privilege – whether that’s by virtue of socioeconomics, ethnicity or the country I was born in. I always try to remind myself of this.

Fifth, protect the planet – I can’t leave this off because it’s so important. I’ll be gone soon, but humanity will still be faced with the huge challenge of reducing carbon emissions and saving habitats from destruction. In my time here, I’ve been lucky enough to see some natural wonders and understand how precious they are. Hopefully future generations will be able to say the same. But it will take a massive collective effort.

If you asked me what I’d want to leave behind, it would be a new awareness of these things among my friends – and anyone who’ll listen, really. I was astonished by the number of people that responded to my article in April. I now find myself in a position where people are asking me how they can help or what they can do that would make me happy. Apart from the obvious – looking after each other once I’ve gone – I’m going to push for people to give, be that money or time. I’ve already had so many people ask which causes I recommend, and there are loads, but I’d say any that align with the values I’ve sketched out above would have my blessing. Among friends and family there is talk of setting up a small charity in my memory.

Despite some very low times, it’s worth repeating that the period since being diagnosed has been made not just bearable but actually fantastic. I’ve had new experiences that haven’t seemed tainted by cancer – and those experiences were, as always, much better shared. In a situation that is pretty new for most of my loved ones and friends (I am yet to meet anyone I grew up with who has had to deal with cancer or a similar chronic illness at my age), it has been amazing watching them all rise to the challenge. I’m not sure if it’s just that I know a high proportion of amazing people (possible) or if most human beings have this capacity for connecting and recognising what’s truly important (very likely).

After the gut-punch of cancer diagnosis, I’ve really struggled to define a purpose for my own life. I found in time this came naturally. Life is for enjoyment. Make of it what you can.

• Elliot Dallen is from Cardiff and lives in London. He was diagnosed with adrenocortical carcinoma in 2018, aged 29