You need to be mentally the strongest to survive this stuff. People would say BS like "You don't need to grind it to be successful blah blah".
I am not sure if you are solo solo or just a solo founder with some team members. If the latter, focus on building a great core team. Team that you know you can rely on. It helps take some pressure off even though you can never switch yourself off as a founder. That is how we are wired. Can't change the wiring.
Also, I am sure there are ways to talk to other similar people IN PERSON. All the online stuff is ok but not enough. But regardless, if you see yourself on the right path even a little bit, don't give up.
Remember that entrepreneurship is not about WHAT you are doing. People do many businesses in their lifetime. It is a way of life. I just can't see myself living my life dong something in a FAANG or a corporate company (I did that for 10+ years initially btw so I know how it is).
Cheers and remember that many people would kill to be in your shoes.