How can I say ~ I'm gonna move back to zero in Chinese?

1.打掉重練
2.砍掉重練
3.打掉重做
4.砍掉重做
5.重新開始
6.回到原點
1~4 all imply failure, what needs to do is “back to square one”, and do it again
5 has a meaning of “do it again”, but it doesn’t necessarily imply failure. The purpose of “重新開始” may be just for better training and skills.
6 has the partial meaning of “back to square one”. Depending on the context ,sometimes it implies failure, and normally another phrase like the “重新開始” and etc. will follow to make the meaning clearly understandable.