I made peace with this once I realised even people at the very “top” of their fields (whatever that means) often still felt that way.

For tips on overcoming this feeling:

• You hate everything around you. Good! Being pissed off is an excellent motivator for action. It’s a trope in fiction that you shouldn’t use anger or hate or other negative emotions to fuel your action - the hero goes through a whole arc of using these “bad” emotions for power until they crash out and learn to use the power of love or whatever. But it is worth pointing out that our heros get a hell of a lot done burning that dirty fuel. And they are the hero of the story because they follow the character arc of learning to be motivated by love. We rarely see the tale of the person who sat alone at home doing nothing until the power of love motivated them to action.
• When you say you don’t know how to get from A to B, usually what you mean is that you aren’t sure of the correct path, not that you know that no path exists. Your angst isn’t the angst of knowing something is impossible, but of knowing that something might be possible - of having uncertainty. Thus, the way to cure your angst and achieve you goal is obvious - start exploring the possible paths to get to your goal.
• If you feel hesitation about starting down a path, or about picking a path to follow, just close your eyes, pick one at random, and take a single step. Once you get started, it is far easier to keep going, and often exploring one path - even the wrong one - gives you good information on which path to try next.
• Often a reason people hesitate to start down a path is because they worry that they will waste time or resources. And indeed, sometimes your paths will dead end. Sometimes you will get conned. Sometimes you will stub your toe. But almost always, time spent going down the “wrong” path is not wasted, since you can always be learning about something with each step you take. You are an explorer, creating a map of the landscape - and the better your map, the faster you will travel.
• Another common reason people hesitate to start on a path is that they are scared. They feel quite certain that a path is worthwhile, but they are anxious about being embarassed, or rejected, or being uncomfortable, or of being outed as inadequate. In these cases, it is worth remembering that the pain is the process. Being okay with being uncomfortable is a master skill in life, and so any path which makes you scared and uncomfortable is a path worth following. And if the fear is locking you in place, so you are completely unable to move, here is a technique: wait it out. Simply spend some time sitting and staring at your problem. You can even work it into your daily schedule, eg: every day, spend 5 minutes staring at a blank text editor window, thinking of working on my resume; every day, go to the grocery store and think about asking the nice old lady at the cash register how her day is going.
• Speaking of a daily routine - when pursuing big goals, you are grappling with uncertainty. Make pursuing your goal easier by reducing the uncertainty in every other part of your life. Adopt daily and weekly routines to take care of the basic tasks in your life and clear out the clutter so that you can keep as much mental energy as possible dedicted to pursuing your goal.
• As you work on drawing your map and travelling down different paths, you will meet other travellers on their own journeys. Most of them will be happy to help you - humans typically like helping other humans. They can share their own maps, tell you stories of their successes and failures, lend you resources, and become travelling companions which encourage you to rise each day and start walking your chosen path. Usually the biggest problem people have here is that they are ashamed of the goals they are pursuing - they don’t want their fellow travellers to think they are stupid, or misguided, or greedy, or immoral, or overly ambitious, so they never dare say what their actual goal is, and they never get the help they need. Get out of this trap, again, by taking one small step at a time towards admitting to others what your real goals are. The more you speak honestly to others, the less ashamed you become of your desires, and the less ashamed you become, the more others will see your enthusiasm and be impelled to help you.
• The environment you live in has far more impact on your success than you can imagine. If your dream is to change the world writing software, you will be served far better living in a 6 bedroom house in downtown SF full of other developers than you will be living in your parents house in a rural Bavarian village. And if you dream of being an extreme alpine skier, you should make plans to move to Chamonix, not Mexico City. Live in a city known for your goal, in a neighborhood which facilitates your goal, in a house that makes it easy to pursue your goal, with other people who are pursuing the same goal.

I hate that this feeling is presented as innate when it’s very obviously societal.

meirl.

Despite everything, it’s still you