That's an important question Mate. When it comes to Investing in Bitcoin, there's actually a thin line between being aggressive enough to maximise on potential gains and being overly or too aggressive to the point that it turns to recklessness, and this all depends on two things, which is your financial reality and your emotional resilience. I believe the main idea is that to take on enough exposure that your stash can potentially grow substantially in the long run, but not so much that you'll be forced into a financial hardship or panic by a sharp downturn.

If you've got a solid financial cushion in place, a steady income stream(s) and of course a long term perspective, then surely you are free to lean more aggressive, and this is because Bitcoin's volatility is a lot more easier to ride out when you don't have the need for the money anytime soon. But even then, when those aggressions becomes way too much, it turns into recklessness and that's when the real danger sets in. Recklessness could be seen as, going all in, acquiring some debt to keep the accumulation going or maybe using leverage. It's a lot more healthier for every investor to size their Bitcoin position at a particular level that even if there's a downturn in the market and their Bitcoin portfolio size drops by 50% to 70%, it won't affect you pretty much or push you to panic sale.

I believe the ultimate test to consider one's level of aggressiveness is psychological, any investor that can hold through a red market without losing sleep is definitely still within a reasonable level of aggressiveness. But when you start to observe that your exposure has now become a threat to either your peace of mind or your financial stability, then that's a major cue that you've crossed the line.