“A man cannot be comfortable without his own approval.”
What you may be bumping into there are success barriers. You are putting up barriers in your own mind of what you may or may not deserve. Or barriers that tell you what you are capable of. They might tell you that you aren’t really that kind of person that could this thing that you’re attempting.
If you don’t approve of yourself, of your behavior and actions then you’ll probably walk around most of the day with a sort of uncomfortable feeling. If you, on the other hand, approve of yourself then you tend to become relaxed and gain inner freedom to do more of what you really want.
This can, in a related way, be a big obstacle in personal growth. You may have all the right tools to grow in some way but you feel an inner resistance. You can’t get there.
Or if you make some headway in the direction you want to go you may start to sabotage for yourself. To keep yourself in a place that is familiar for you.
So you need give yourself approval and allow yourself to be who you want to be. Not look for the approval from others. But from yourself. To dissolve that inner barrier or let go of that self-sabotaging tendency. This is no easy task and it can take time.