Scaling up position size after initial success?

Been trading $EURUSD on a micro account for a few months now, mostly scalp/intraday, and starting to see consistent small profits. I'm hitting my profit targets about 65% of the time, and my R:R is around 1:1.2 on average. I've been super strict with my 1% risk per trade. My question is, as I consider moving to a standard account or just larger positions, what's the best way to scale up without tripping myself up psychologically? Do you jump straight to 2% risk, or is there a more gradual method that seasoned traders use? I'm worried about letting larger losses affect my discipline.