Advice better sperm

Daisy • Only one embryo survived IVF ICSI failed #1 January 2018 IVF ICSI #2 end of February = pregnant ♥️😍👶🏼 Due 7th of December, 2018 Babygirl Lizzie born November 23, 2018 Still two embryos in the freezer IVF ICSI Baby #1 cryo = pregnant 🤰🏼 Due February 1

How to become better sperm? Health food, no alcohol, coffee and cigarettes ... other advice?