I understand what your saying. I usually play $200nl, but sometimes I jump down to $2nl just for shits and giggles and to waste some time. I of course play less than my optimal game.
However, it's a bit of a different situation. The games I go down to is 100x less than my normal games. And because of this I can afford the money, and therefore, don't really care. However, you on the other hand the $2nl would be your normal stakes, and a buyin or two would be a significant portion of your roll. So you should treat it in that manner. If you have emotional problems, whereby tilt, patience, etc, and you don't even have a solid bankroll, then it wouldn't be wise to play higher until you got that under control, and also proven that you can win at those limits.
Also, this sounds quite a bit like a post asking for staking or something. That isn't going to occur here. How can we help you and your insistence on playing higher than your bankroll permits other than making your bankroll larger? Well the only help your getting is advice on how to play within your bankroll limits.*
*Just in case.
