Hhhhmmm...
From my childhood, i think.
for manga, it started with anime when I was little, then continued with mangas like Card Captor Sakura and Pokemon. I already had a sort of habit of manga. i was like... 9 or 10 when I got my first manga? Maybe younger, it started really early.
For comics, well, I was surrounded by it when I was little (maybe 4!) : Tintin and Asterix (which were my favourites), Spirou, Boule et Bill, etc, etc... So naturally, we had a lot of comic books of those stories at hme. Also, the Smurfs! Got some books about the Smurfs too.
Manga influenced me pretty much, but I think I have a mix between french and japanese comics for paneling.