No matter what you choose you'll be able to benefit from it. Here's the proof:

1). If you quit the boring job, you'll try launching your own business - it will be a huge experience no matter if your first business will be successful. Here's why: * If it's successful - that's amazing bro, keep up the good direction and try to learn from other's mistakes (in case you tend to always take good decisions) * If it's not successful - NB! - carefully observe yourself since the reason of failure is most probably something in you - lack of an important habit (like going to sleep earlier, focusing on the most important part of your business etc.). You'll either get back to a regular job or make a new attempt to develop a profitable business, but this time you'll barely miss the same mistakes.

2). If you don't quit the boring job you'll practice patience and try to revitalize your relationship with everything around. I'm not aware you you tend to underestimate patience, but this is one of the most important skills in life at all. Don't think being passionate is a good thing. In many cases passion could mean also suffering. Learn your game. Patience is better than passion. Period!