First attempt didn't help! Spine surgeon wants to do second surgery, what else can I do?

2nd opinoin. No surgery is a guarantee. Soometimes, a second surgery may be necessary. The important thing is for you to be comfortable, so if your not get a second opinoin. They may have an alternative treatment for you.
Get second opinion. First get a second opinion. If you smoke, then stop as this has the most negative impact for surgical success no matter what type of surgery or who does it. This also depends on why you had surgery in the first place and what type of surgery you had and if there were any complications and what kind of other medical history that you have.