If it’s money you need to spend in 2 years, and you can’t afford...

If it’s money you need to spend in 2 years, and you can’t afford to lose any of it, you should probably just put it in a term deposit (or a mortgage offset if you have one). Especially now that you can get a decent risk free return. Anything else is a gamble over that time frame. Any stock (let alone one with such a wide range of potential outcomes like Airtasker), or even a broad index tracking fund could easily be down in 2 years. We could be in a recession or any number of macro or company specific issues could be weighing things down at the time.