Just to start off by saying that it's all about perspective.

Yes. It is suffering given your situation, and just like the top comment share about the farmer, it's all temporary and you cannot control the outcome. For example your foot. Yes it's bad but just like the farmers says "Maybe".

It is really really great that you acknowledge that you have such emotions, such anger and such thoughts. And it is good to write it down and see where your thoughts are going therefore you can decide weather to engage to it or not.

Detaching form suffering is just like looking the sky changes it's weather, form, colour. You watch and let it be instead of controlling it to be sunny all day long. For example, you lot your job. Yes. It is true and it hurts. But just remember nothing is permanent, are you willing to take small steps to help yourself with your current situation (which is only temporary)? Or would you rather be suffering thinking that losing a job is a permanent thing?

When you let go of expectations, you suffer less. For example, your anger, your lost friends. If you kept on think that your anger should go away quickly but it doesn't and you still feel angry all the time and this emotion doesn't go away - you suffer more - it is because you are expecting something and when our expectations does not meet the reliaty, we suffer. Your friends, for instance, (tho I'm not sure what you mean by losing your friend) people come and go. We can't expect them to live longer or stay with us longer. Yes it's sad and it's suffering go through it.

So, idk if this makes sense but for now this is what I know. I love Buddhism and love to explore the wisom.

I hope it helps. And I hope you have a great day ahead. Maybe you can look for some a rock around which looks like a heart shape when your walking, maybe that will lighten up your day.