As a male near 60, all my relationships and a marriage have ended in heartbreak. I've been solo by choice since my mid 40s, and have never even thought about getting into another relationship. Just not worth it.
Thanks for proofing my point. Also, congrats for actually following through with your decision. Thats not a given for many, because natural urges typically are so strong, they sometimes resemble addicition. In any case, full power to you.