it's mostly the self-insert given to fanfics most of the time to incorporate characters created by the author(Fan) while wish fulfillment is something akin to a tag in itself because it's more of a rendition of a fan's thoughts into a certain story. Well can't say for sure but that's what's my...
Regression would be boring due to the fact you already know anything but at the same time makes you invulnerable by using the future you achieve wisely
Transmigration is risky because of the udnerlying fact that the world you choose affects how you would turn out to be. Grim dark fantasy? Hah...
I would say through background info dumping or complicated dialogues.
Maybe make it seem natural by giving details on where the mc got the knowledge or calculative, in which the smart hero builds up various hypothesis through dialogues and know the right answer.
It's really funny if they dont go through pm's as it becomes a good entertainment source tbh. I mean just look at reddit or twitter threads. It's like a pokemon battle but more of a Ego duels. Its fun and games till they start ddoxing
Now that I've thought of it, I really thought I have fear of the future as my biggest fear but after reading this post. It really made me question what I truly fear.
I mean I do fear any primoridal fears but the fact that you said "Biggest" fear that would affect my life made me question...
Oh yeah this might sound hypocrisy for someone who is afraid of uploading his works, but.
Doubting is natural but the choice to pursue through it would be based upon you. As long as you have faith in your work, then how about just try it even once? Without the fear or anixety holding you back.