How do they know when God is angry?

[Believe Heart]

1- You go to hell or not. There are only 2 possibilities. The things you mentioned above are just reasons not the results.
2- No one can blame others for his sins. You can not blame Muslims for your doubts and wrong beliefs. Because there are thousands of others who find the right way under your circumstances. Probably you should check your arrogance which makes you blind.
3- It is only your assumption. Have you ever read and finished Quran from beginning to the end and also read Vikings' holly books which mentions Valhalla from beginning to the end. How can you match them without knowing them completely?
Life taught me that the main reason for all my failures is assumptions.

1. If Big Mo was wrong (not lying, just wrong), then I won’t go to hell.

2. I don’t sin. I take pride in my ability to doubt, so I’m not sure I can reasonably ‘blame’ anyone. Certainly not Muslims. Same for my arrogance.

3. I’ve read both Eddas (together with a lot of supernumerary material) and I own three copies of the Quran - two in English - that were gifted to me by Muslim friends. So, yes, I’ve read your book.

I have another theory about what is responsible for your failures.

Boru

Nope, obviously you didn't read Quran, you only have read your biases.
We can't have read the same book, because I see a clear miracle, you don't see anything.