Does your own background for the character feel like a chore to read? It might well be too long and drawn out there at such a point. Stretching it out makes it more an effort to contend with and unless it hooks the reader, it becomes in large wasted space. As it is, it is very difficult to create such an in as it were, meaning that if it loses momentum and interest it is all but guaranteed to hold no point or matter to the majority of readers, especially on a roleplaying forum, where the reading and writing go hand in hand; you haven't the luxury of holding the reader captive, so to speak, so they can progress with reading the rest of the information.

That said, as with [@ArenaSnow]'s suggestion, never play the entirety of your hand with a character's story. Leave elements suggesting there is more to it than said, not just cut and dry of "This happened, then they went here and then other things happened." Making details ambiguous and open allows not just for the wonders of imagination to work in your favor, but encourage a reader, rather partner or partners in this case, to work forward on it and contribute to attempting to glean and pry that information, [@Zerox].