As for the TP, I placed it near the next candle after the recent high as it might very well retest this area. I wouldn't suggest using the MA cross as an exit as it is not performing well for this pair.
If you are risking 2% of your account on that position, you should use 4.69% of your equity you can learn how to define your Position size by googling "trend surfers position size"
this is not the best trade opportunity, but for those who really want to trade XRP today, you might want to consider this trade idea.