Question: synonym for a do over?
Answer: do again. To repeat. ... 
redo. To do over again. ... 
rework. To subject to a repeated or new process. ... 
refurbish. To rebuild or replenish with all new. ... 
remodel. To make over in structure or style; reconstruct. ... 
renew. To arrange to extend the loan of: ... 
repeat (related) ... 
redecorate (related)