我想我会默认。

如果当初我可以坚持下去，我想结果可能会不一样。

后悔是为了证明当初的选择是错的。

If it happens, I think i'll give a admit silently.

If at that point in time I could persevere on, I think the outcome will be different today.

Regret is only to show that the decision you made was wrong.