If you approach parenting with a sense of great responsibility, then you're already a good parent.

Children are not that fragile that One Little Mistake will destroy them. They also have their own agency and personal responsibility -- and increasingly so as they get older -- so it's not all on you.

The main problem with children from my perspective and experience is that they don't come with guarantees and so if you are hoping for certain outcomes (in other words, if you have expectations) to recompense you for all the time, worry, effort and money involved ... even if you are the best parent in the world, you may be disappointed.

My son for example had a crippling personality disorder that was not my fault; indirectly, it ended up killing him at age 30 and (thankfully or sadly, depending on how you look at it), he never experienced a positive relationship or being a father himself. He had one love in his life, who broke his heart and used him, and he never recovered from it. That's not a happy outcome, and it had nothing to do with me or even the quality of our relationship (he was a devoted and respectful son ... a father couldn't ask for better). Basically my only indirect role in this was my lousy selection of wife #1, who was herself mentally ill and whose condition often results in children with the condition my son had.

THAT's the stuff that kept me up nights. It's actually worse than any mistakes you might make, which you can actually apologize for, not repeat, use as a teaching / learning opportunity, etc. But the vicissitudes of life, you have NO control over.

If your child is reasonably healthy and stable mentally and physically and you care enough to be concerned about parenting the child correctly, then your battle is 75% won already. If the child's personality is reasonably compatible with yours and you aren't in dire socioeconomic straights, I'd say you're almost home free. Your job is to just to do no harm, love them unconditionally, and make reasonably sane decisions along the way.

Raising a child is a science experiment. You have to try many different approaches and theories. some work, some dont, but u r teaching your child that failure is ok. To many kids grow up today thinking that failure is the worst thing to happen. When you make a mistake share that with your child, it will help them be a resilient adult.

I disagree. I screw up all the time with my kid. And I think it's important that when I do, I take responsibility for it. No parent is perfect all the time.
I can't stand people who can't admit when they've made a mistake. So I model the behavior I want to see in my child. Learning how and when to apologize is a healthy relationship skill.