Right ... i have experience in this.
Staying up all night and sleeping the next night ... won't work.
Drinking .... works. But you'll become dependent.
Drugs ... works. But you'll either become an addict or just treat the symptoms.
Practice good sleep hygiene. You probably already do, just make sure of it.
Now, to my actual advice:
You can't sleep because your mind is racing. You're excited at your ventures, you're mind is constantly finding methods to make money. You're nervous incase you fail. You stress out over it. You're anxious to see how well you do and to see what the future holds.
Even when you get to sleep, you won't get a good nights sleep. You won't feel rested, you won't feel refreshed and you certainly won't feel any better than you do right now.
First things first; disconnect. Switch your phone to silent and leave it in another room, switch your PC off, don't watch TV. Avoid all stimulants (obviously) etc. (all normal advice!)
Second; write your ideas down before bed with a list of "to do"for tomorrow. This is key. It'll mean you can switch off and pick back up tomorrow. No more racing mind. It'll take a few days for it to work, but it does.
Now ... when i suffered from insomnia, it was due to my (excessively) light sleeping. A fox outside sneezing would wake me up and i wouldn't go back to sleep. Seriously. Find the reason your quality of sleep isn't great and remedy it.
For instance, if you're sensitive to light ... get some black out curtains etc.. For me, it was sound. I got some molded ear-plugs to wear when i sleep. I wear them every night and feel much *MUCH* more refreshed and ready to go the next day. I'm no longer hazy, i don't have trouble falling to sleep and my mind doesn't race as much.
Admittedly, my pattern knocks out very easily. I can work until 3-5am without really thinking about what i'm doing before i realise the time. However, i can now knock my pattern back into a normal rhythm just as easily.
Hope you find some peace and solace though. I for one know how bad insomnia can be. It can literally kill you.
All the best. I hope this helps.