Self-defense is more a matter of skills than tools, but you did pick a good, solid knife.
No truer words have ever been spoken...with a slight addition of "more a matter of
'mindset' and skills than tools."
I realize I don't know a whole lot about self defense, fighting, or surviving but what I do know is there is a critical priority order and purchasing and/or possession of tools are lowest on the list:
1.
Mindset - Developing/maintaining the proper self defense Mindset
"I am the weapon and all this hardware are just tools!" (Software - Absolutely the most critical and needs constant training/development) Folks, this is what wins fights and survives in the wild! Mindset also develop and impliment one's strategy...which quite frankly is under-rated on this forum. People buy gear without any strategy relevant to their survival 'mission'...they just buy gear based upon the "CDI" factor (Chick's Dig it or WoW factor) not upon careful consideration of the mission and my training.
2.
Training - Acquiring the neccessary
effective fundamental Skills/Knowledge/Behavior & understanding the criminal/civil legal considerations/ramifications (Software) (Note there are people actually teaching ineffective skills/knowledge/behaviors but this is a different discussion)
3.
Tactics - One must learn, practice, develop, and master various tactics - by definition "tactics" means using all the available means and circumstances to give oneself an advantage while placing our 2 or 4 legged opponent(s) in a continious state of disadvantage.
4.
Application & Competency Demostration - Practice under realistic simulated conditions testing ones training & tactics against 'realistic' scenarios and 'real' people! - 'trial & testing by fire!' (using both hardware and software)
5
Tools - Selecting and procurring Tools (Hardware -Lowest on the priority list - any tool can and probably has been used successfully for self defense)
Most of us equate "possession of tools as competence" - I owned an airplane once but couldn't fly it very well and didn't have the time to develop the competence or confidence...so I sold it. Owning a firearm or knife doesn't automatically make one competent or confident to be able to defend oneself.
As a former firefighter who has been in harms way a few times in my life...we worked on 1,2,3 & 4 and often trained with the worst possible gear on purpose to eradicate the "gotta have a favorate tool" mindset that most of us spoiled North American's seem insistant on having. Once you have developed your 1,2, 3 & 4 then it really doesn't matter what tool or tools you have...you are able to use it successfully to complete your entire mission including that of survival and self defense. But on the other hand once you've mastered 1,2, 3 & 4then you'll understand what the most effective charactistics of a defensive knife (and survival knife) are and are not...
But what the heck do I know?