Coping with being alone?

I went NC with my entire family after years and years of not being important enough to be around anyway. It’s been over a year for some and almost 6 months for others (the NC).

I’m only 28 but this has shipwrecked me. I used to feel alone before, but I am officially unclaimed, and don’t belong anywhere. I have 3 jobs to keep myself afloat financially and just work all the time to survive. But I feel utterly incomplete.

I work in the funeral industry right now. If I were to pass away, none of them would know how to celebrate my life, maybe none of them would. I keep thinking of what that process would be like being estranged from everyone. If my next of kin is contacted and they decide to have a service, would everyone just pretend everything was ok? Would they choose to not have a service for me? My life feels so utterly devoid of value and meaning. I don’t know who I am or what I should be doing. How do I cope? Is this normal?