And can I get to choose some perks for my next life?

If no, here’s some suggestions:

• Intuitive hindsight: In your next life, you’ll have an “intuition”, which will be able to help you to help repeating good things and avoiding mistakes, but the more you change the new timeline, the less trustworthy it becomes.
• Supernatural talent: Based on your previous life’s talents, you can more easily guess how certain things works.