I was an only child and had an excellent childhood/teenage years and am still really good friends with my parents. My goal with my daughter is to do as good of a job for her as my parents did for me. I don’t live a perfect life but my relationship with my parents is not something I could ever have any complaints about. Don’t worry, as long as your kid knows you love them and you try your best to do what’s best for them (and not just what you want to be best for them), I wouldn’t have any worries personally.