(First off, you don't need to contact Atlas to post here, you need to go into your User Control Panel -> UserGroups and add yourself to Play by Post Players)
In a large enough tabletop gaming group, there's room for one min-max'er, not sure if the same will prove true for a PbP game. The bigger problem to my mind is that the character concept isn't very well-fleshed out, and I'm not sure if this is a problem with your use of metacreator (and default specialization options), or if you're just not familiar enough with the char gen rules/conceptual framework.
Early Life, for example, indicates the skills that sort of came naturally to you during infancy. Athletics 1 (in armor), for example, makes little sense. Why was a toddler dressed in armor?
I'm guessing you thought you were raising those skills to 1 (5 xp). As it actually stands, there's no way an apprentice, even a Merinita, could pass his gauntlet with this skill list and magical ability. Your skill list is going to take a major hit -- right now, all you actually have is:
Athletics (in armor) 1
Awareness (alertness) 2
Charm (first impressions) 1
Folk Ken (discern lies) 1
Guile (fast talk) 2
Artes Liberales 1
Concentration (spell concentration) 2
House Merinita Lore (initiating self) 7+2
Latin (reading) 3
Magic Theory (inventing spells) 2
Parma Magica (Mentem) 1
Penetration (Imaginem) 1
Volshebnii Mechtateli Lore 1
With Latin 3 and no Prof:Scribe, your character cannot read and can barely speak the language of the Order. Once you discover how many actual skill points you have to work with, those combat and Chirugy skills are probably going to go, anyway.
You have also selected Perdo, Aquam, and Corpus spells with no ranks in those arts. You've taken the Focus Power: Master of Vim, but this only applies to Magical Beings, and you've not taken a virtue which suggests you are one.
MetaCreator has, in other words, done rather badly by you. I suggest you sit down with the books and the Ars Magica Abilities Worksheet available through the Atlas Games ArM website, and gen this guy with a pen and paper.
It seems like your basic concept here is a Merinta Dream Mage, who is so crippled physically that s/he turned to the world of the subconscious in order to find a place that s/he could live a full life. That's a cool concept (and suggests some much more interesting flaws, perhaps having to do with his/her mangled body), but it doesn't really seem like someone who would take up the challenge of restoring a winter covenant from uncertain doom.
However, I think the difference between where the character stands as metacreator gave him to you, and what would be playable in this campaign, is actually the missing chunk of background you need to make this character interesting, as well as functional.
If you took a physical disability flaw, that would give your character a reason for those low physical stats and a reason why s/he'd want to seek solace in the dream world. However, your Parens would still insist on teaching you to interact functionally with the rest of the Order of Hermes (if only so that you could meet Mystagogues who would teach you these additional mysteries you crave). Edit: I also note that, given your incredibly low physical stats, you'd be unlikely to perform any of the ordeals or quests necessary to self-initiate.
At the end of the day, though, you're still going to end up with a character unlikely to investigate the disappearance of a winter covenant. Even assuming we found somebody alive enough to be dreaming, you wouldn't be strong enough to handle what was waiting inside them.