So, you have the good sense to know there's nothing wrong with taking pride in your ancestry. Yet, you are neither a Blendingr, nor are you an Úlf.
You see straight through the dysgenic envy of so many wishing they had inherited more, but hadn't. You are not like them in that sense. Though, you weren't born of a legendary bloodline, either.
Your family lacks structure and centuries of preserved traditions and noble standards. Or, perhaps, it once had something like them, but immigration or intermixing destroyed them.
Whatever the case may be, you've a stronger mind than to fabricate nonsense about your history. Or, maybe you were once weak, but developed better character and wisdom over time.
Your line has survived until this point in human history, as proven by your existence. Though, your existence is nothing special. You can hold your head up, but not high. Not as high as families you admire, whose forefathers have done what yours had not for your self-esteem.
So, what can you do? Work.
Be the forefather you wish you had. Take the risks you need to earn the honor you want. Serve your people. Build upon your civilization. Dare to be laughed at by the smaller-minded.
Your life is too a story, capable of storage in the annals of history. It's up to you to make your story worth telling. You accomplish that by the decisions you make now, that echo into forever.
So, your father didn't plan for you, but that should have no bearing on whether you choose to plan for yours.
You can choose what you base your self-esteem on. Then, you can choose to devote your life to building that esteem with courage, merit, calculated risk, sacrifice, and hard work.
Your ancestors may have failed you, but remember that you too have the potential to be someone else's if you're not already.
At the end of your days, whether it be on a battlefield or in a bed, when you look back at the story of your life, you'll realize that all you did to build your esteem is the honor of your line.
And that's what you can pass on to your son, something that he can preserve, to hold his head up high.