Hey Jonny, I'm not exactly a role model for technique but I've done a lot of trial and error to be fair and these "scientific" experiements usually result in a bit of blood and skin loss. There are all sorts of changes you could make e.g. running lower pressure, wider rims, different tyres, more aggresive thread etc etc
One thing I did notice however when riding more aggresive bikes (in terms of geometry) was of course tackling steeper trails and I still had the tendency to go back...way back....and as a result there wasn't much weight on the front wheel and it was barely tracking in control and then the least bump, root, schlipiness and it was washout time
Might be an idea to check if you're too far back on the bike or get someone to check your positioning on the bike, attack position etc when things get aggro
Needless to say I'm still working on this myself and I have all sorts of aggro tyres
Vigilante up front / Vigilante/Breakout/Trailboss on the back depending on the weather/distance pedalled
Minion DHF/High Roller front and rear depending on....just depending