I’m currently in a wonderful predicament, where I have the option to pick career changing choices.
1) To teach abroad SE Asia
Or
2) I’ve been offer to co-own and direct a potential business which is really needed in today’s market, will be up and running a a couple and months.
Which means I will be broke for a while BUT IT CAN WORK
What would you do?
You haven't given much information on either the business model or your track record in this field or even business, if it's your first time, there is a 95% chance you will fail which is normal, majority of startup fail and even those that don't can take around 1-3 years to make money on average, you have to keep this in the back of your mind, you will likely require additional funding depending what it is that you are doing which could be another stumbling block.
To have any chance of making it successful it's a 24/7 Job, to put this into perspective it's like a double teaching shift every day, you have to ask yourself if you can handle this sustained pressure over a long period of time while being broke with a high likelihood you will fail since it's your first experience
The fact that your debilitating over this tells me you don't have that necessary fire power in your gut that will see your through this, therefore my advice to you is to go with the teaching abroad especially if they are paying you decent money for it relative to the cost of living in that place.
If you strictly budget depending on how much your getting paid you can easily put away $1000 a month if not more using the average salary they pay teachers abroad, there is no investment that you can ever make in this world that leads to a sustained $1000 monthly returns
This will open up doors for you to invest with other like minded people while letting others do the heavy lifting (running the business) as opposed to you doing this yourself, you will also save yourself from the fast ageing process associated with this type of work which is high pressure, high stress.
I worked in such an environment before and I began to age very quickly whilst gaining a tremendous amount of weight until an illness forced me to quit and I quickly reversed it all while swearing an oath to never partake in such a thing again.