You just modified the martingale strategy by assessing the risk factors but it doesn't matter especially in games like Crash and I don't think it follows any pattern so investing time to read the pattern is just a waste of time and streching the session with whatever funds you have is the best chance to increase the winning it doesn't necessarily mean you will end up in profit.

Increasing your bet after loss increase the chances of depleting the bankroll so that's actually against the bankroll management in my opinion so just bet as much as you can in random amount and just walk away when it's done.