Reading through your posts, it seems you are starting to get a handle on trading Forex. I'd like to put in my own two cents.
As has been stated a billion times daily, Forex is probably the riskiest investment out there. Just when you think you've got it all figured out, it throws you a curve ball. I'm not saying this to discourage you - it just bears repeating. This does not mean that Forex is impossible to beat. Quite the contrary. You just have to be absolutely sure to do a few things:
Always use a stop/loss. Set specific limits on how much you will risk per trade. Never trade willy nilly - that's akin to gambling.
Immediately protect your capital by locking in pips once you are showing a profit. If you are up +20 pips, adjust your stop/loss to either break even or be + a few pips.
Before you begin any trading, sit down and write out exactly how you will trade. Set really specific, realistic goals for yourself. Have a detailed plan laid out fully beforehand so that no matter what situation arises, you know exactly what action you will take. Once you start live trading, you should never be guessing. You should know exactly what to do no matter what arises. This is critical.
Of course, this is just basic stuff you probably all ready know.
Now for some more thoughts:
Have you thought about diversifying your 100k? As others have stated, that's a gigantic sum of money to invest in anything, let alone Forex. Have you ever thought about investing some in the stock market, some in commodities, and the rest in Forex? Just throwing this out there because now is an EXCELLENT time to start buying stocks. And the good news is that you can use the same technical analysis on both and achieve good results.
Which brings me to my next question: How will you decide to enter and/or exit your trades? Will you be using fundamental and technical analysis, or just one of those (or none of those lol)? What time charts will you trade? How many pips will you try to get on each trade? Will you use a trailing s/l? Which pairs will you trade? Lot size?
Not trying to be negative, once again. Just curious really.
Long story short: Yes, that's a ton of money to invest in Forex. But if you feel confident in yourself, and you plan on being cautious with your trading, then I say go for it. Just be very cautious. Personally, it might very well be possible to go from 100k to 1 million in your first year, but why set your sights so high? What's wrong with making an additional 100 - 200K in a year? That's damn good money and totally possible!
Also, I will provide free signals to you if you are interested in a second opinion on what to trade. I won't make any guarantees about the signals, but I'll offer you free technical analysis and email you with what to buy/sell and when if you are interested.
Best of luck to you. Keep us all posted. I have no doubt that you shall fulfill your quest. Just don't get greedy and you'll be fine! Remember that free advice abounds here.
To your success!