1.I'm debating between A and B.我在A和B之间挣扎
2.I can't make up my mind. 我不能下定决心
3.I'm having second thoughts. 我要再想一想
4.I'm on the fence.我还在犹豫(= I'm in the middle, I don't know what to decide)
1.He convinced/persuaded me to…他说服我...
2.I'll take that into consideration. 我会考虑 (= I'm reconsidering my decision)
3.Looking back, I know it must be the right decision.回头看，你会发现这是非常正确的决定