Blocked

Today i traded unsuccesfully. I had the idea that I am totally blocked after last weeks stong uptrend. I didnot get a grip on the markets today. No "flow". The first trade was long after a gap. Strong trend up. The FDAX at 4400 almost the highest level in the year. We were in a nowwhere zone. The gap was closed. This happens.

How do I deal with losses? I think It is important to overlook your trades and try to rethink why I went in and how I went out.