good job kid. It's a long and painful road to success and you are taking the right approach.
Are you running the back test only on EJ 1hour? I read you say earlier EJ(ChfJ) and GJ, so not sure which pair(s) were included in your back test.
15 trades in a month in back test would probably equal to 5 or 6 trades in real live account as you cannot trade 24/7 on a live account(unless you switch down a time frame)...so 2 or 3 pairs might be the way to go when you do it live. It would be ideal if you can achieve similar results on a non-Yen pair so as to not over leverage on on currency.