I'm waiting for strong SGD and weaker USD to be in my favour for some exchange rate decision and such analysis are also extended to you. If you are waiting for a stronger SGD, wait for it to hit 1.3502 before you exchange it to USD.
Such movement if it is going to happen, it is best to happen within 6weeks.
Make the analysis all by yourself and do not overtrade. Risk no more than 0.50% per trade is considered low risk.