Since I do well alone, y is it so hard for ppl to believe I can't coexist with others?

I've lived on my own before. I did reasonably well. I got my bills paid, I went to the doctors, made food for myself, went to school, and did well in cles I took. I and many o others were proud of me. Because in spite of what ppl thought of me, I did manage on my own, even if not totally efficient. I've never done much around the house, so mom and dad didn't' think I could make it on my own. But they did let me stay in an isted living facility for six years. I did pretty well. But as I got older, and my progression in school was too slow, they opted I get married. I did. I was too slow, naive, and inept for my new family. When this was voiced, my old one chimed in. Then when the new ones cut me loose, the old ones wondered y I cant' coexist since I did well for so long on my own. I tried explaining that ur ur own boss alone, but it's not so easy following others rules n time restraints, but they still wondered the same thing. Y's my explanation hot air to folks, even after they saw the proof?