it is possible
The RoR calculation expects you to make certain bets at certain counts every time regardless of whether or not you have made or lost money in the past.
For example say you started with 10,000 playing perfectly with a 5% risk of ruin on the 10,000. You go on a big losing streak and now have only 3,000 left but you do not change your bet spread, you still only have a 5% ROR on your original bankroll of 10,000.
If you were to adjust your bet size after every hand, say wonging in at TC +3. You could flat bet 5% of your available bankroll every hand. The chances of needing to lay down 20 bets within one hand are very low, I am sure there is a statistic out there but it is "low".
Now you continue to do this until you get to a point where the money starts to matter, you are going to experience extreme fluxuations, you run the risk of getting to a point where your BR is so small that betting 5% isn't even worth your time.
If you get to the point where it isn't worth your time you can either make the decision to top up to a point where its worthwhile, or quit.
If you get to a point where the money starts to matter, please start to play kelley, the less % of kelley you need to use the lower your fluxations will be.
With extreme self control you can get to a point where you want to be but play kelley as soon as you can.
I only suggest this because anything under 5,000 can be replenished relativly quickly and therefore should not be to hard on you if you need to top it up, don't quit your day job till you can afford to play at .5% ROR or less.