Making seemingly harrowing decisions comes down to one thing: how you preserve the artefact of your current self. Making big decisions undoubtedly changes who you are, but deciding what you want to preserve and what you want to test comes with every iteration of life. When you're in college, the first decision feels larger than anything. Over time, relative to every decision you've had to make, each one becomes less consequential, so the first decision feels bigger than any other one will.
My thoughts, aggregated from many conversations with people who have smarter thoughts than me:
Because one has only learnt to get the better of words
For the thing one no longer has to say, or the way in which
One is no longer disposed to say it
— T.S. Eliot, Four Quartets
You can frame every decision to be the most exciting when you try hard enough, which is why it is hard to decide. The most important factor in being decisive is comfort in your certainty, not in the sense of knowing that your next move is cushy and comfortable, but that you are comfortable with how you came to this point. The things that seem to bog people down are fret over rejection and stress, the opposite of comfort. Once you accept these as part of the process, you allot attention to what energises you instead.
Generally, we do not listen to anyone, we listen to the feelings that resonate the most strongly. People will say things that make you think, but the only things worth thinking about are the ones you can't stop thinking about. I find that this is the beauty in sharing slivers of your life with anyone who is willing to listen — you come closer to dissecting the gaps between how they think and how you think, and this is how you better understand yourself.
Understanding these peripheral desires and aligning them with where every decision takes you will lead to fun daydreams about rogue paths you might take and how you can maintain focus on the subgoals needed to reach larger goals. The beauty of planning is that none of it will ever come true exactly as you imagine, you can only best prepare yourself for all eventualities.
The classic grad jobs of investment banking, management consulting, and software engineering are all safe options on tried and tested paths that guarantee you a low risk of failure — something would really have to go wrong for that to be a bad decision. However, if you follow these paths for too long, you end up never having to break out of the system, you never make a real decision for yourself. You can make partner young, but still be scared to meaningfully uproot your life because you have only ever worked within closed confines. Navigating ambiguity is a skill you've avoided developing. That doesn't sound like a very fulfilling life.
There are so many people who would overcome this if they had met the right person willing to take a bet on them early enough in life. For many who have the profile but cannot dissociate stability from their mental frameworks of life, I seek to push them 1% closer to making riskier decisions every time, even if they never make the decision.
Choose something that expands your definition of yourself. Don't limit yourself to who you are right now and trying to upkeep this persona. Life isn't interesting if you're always trying to balance inputs and outputs to remain where you are, life becomes interesting when you try out every other set of coordinates and understand what you like and what you don't like. And when you're young, understanding what you don't like is more important than understanding what you do like. Make sure you're not climbing the wrong hill.