I love giving advice. If someone tries it out and finds it useful, I feel good. I'm also guilty of giving unsolicited and unhelpful advice. Like giving a friend relationship advice before I've ever had a girlfriend.
There's one piece of advice that I think is especially helpful:
Take advice from those who have achieved what you want to achieve.
Many times people give advice based on what they've done wrong. While this can be valuable, it's not as likely to move you forward to where you want to go. In some cases, this kind of advice is guessing at what would have made things better, or something else they wished to have tried at the time things didn't work out. This hindsight of what not to do is unlimited and doesn't guarantee a path forward, only one spot among many where you might get tripped up.
Those who have successfully navigated the path that you're going down will have much more relevant wisdom for you to follow
(But even then, it's good to be wary of survivorship bias. Luck may have been a large factor in their success without them realizing it. You won't hear from those who took the same steps as them yet failed.)