The only way to know whether you'll attain your greatest dream that's very difficult to get is by working at it for a very long time and confronting the negativity that comes with the process.
What you want has a high chance of failure, enough to make you very uncomfortable. The process will cost you money and stress on your mental and physical health. It'll require at least 7 years of hard work, meaning thousands and thousands of hours of sweat mentally and physically. You'll live on only what you need, spend less time with friends, face negative events and people, and go in and out of darkness facing your demons. Remember, you're expected to fail after all of this. Would you still go for your dreams? Is it worth it?
Personally, although it'll take a lot of grit to weather the emotional and physical pain, I feel it's worth it. I would rather go for my dreams instead of wondering what could have been had I tried. Even failing at it gives me an answer that's more satisfying than regretting on not giving it a shot. No matter what happens, you build yourself up with more knowledge, lessons, skills, and relationships from the journey you undertook.
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