A couple of things:
First, check out this
link. Perhaps its a bit late, but its still a cool adept power that would allow you to accomplish what youve apparently wanted to do all along.
</me climbs up onto high horse>
Second, having read the story of your progression into a "munchkinned" character, I don't buy that your GM forced you to play a munchkinned character. Whether or not your character is actually munchkin, or simply *powerful* as the result of having spent 136 (!) karma, is another story... but I digress. This issue isn't the specific munchkination of your current character, but, rather, your mindset about the whole thing.
The GM didn't let you break the chargen rules. Boohoo. No matter how much a player in any game of mine tried to persuade me to allow him or her to have a man-portable ares firelance at chargen, or to be able to play as a vampire, or, well, whatever, I will say no. Why? Because the rules already allow for a huge variety of different characters... it shouldn't be a big ordeal to make a character you like within those bounds.
As for the wards... were you somehow forced in-game to go through them without first astrally percieving? Were they some sort of masked wards that thwarted your attempts to accurately assense their force? Or did you know they were there, know how powerful they were, and choose anyway totake a calculated risk and pass through, only to have them, as per the rules, fizzle your spells?
Do you suspect your GM of fudging dice rolls to allow the wards to fizzle them, or not?
If you were aware of the wards (as you should have been, astral perception/assensing taking all of 3 seconds) and your GM didn't fudge the dice rolls, then I'd say its actually entirely your fault that they popped. You should have learned to be more careful, and less arrogant, about passing through wards....
GM's do NOT create munchkin players (sometimes munchkinned NPC's, but that doesnt seem to be the issue here). In the end, it is ALWAYS the player's choice... your story seems to be no exception. Being a munchkin is, largely, having the mindset that you should be able to get what you want, and that you have a bad GM if you dont. Your story seems like a wonderful example of this.
</me climbs down>