I agree with Gerv on this, Overall you suffered an unlucky Badbeat BUT you have way too much money on that table. 25BB MAX so you should have already left and would not have risked that much money. The key to SSS is to slowly make your way up the limit until you reach a stage where you feel comfortable enough to try out BSS or higher limit SSS.
You should not be looking to win big, make money fast or anything like that. The strategies presented here teach poker as a profitable outlook not a gamble.
If you want to win big, then learn to play small first. Think of it as being paid to learn to make money.
As far as increasing the money you make goes. When you feel comfortable on 1 table open another table and so forth. Having 4 tables + open gives you the feeling of being active without having to increase your starting hand range.
PokerStrategy does not tell you about the 15-25BB SSS because it doesn't want you to earn much. It tells you because it is the safest way to pretty much guarantee a long term gain.
Fair enough on one table you may double up 30BB to 60BB and make more than you would on other tables. BUT also
what if you lost those 30BB then you are behind on if you played with 20BB only.
Risk Management is a very important thing and by playing outside the recommended range of 15-25BB you are gambling dangerously and overall are expected to run out of money quickly.