I've managed to make around $10,000 with the $1000 that I have and I think it's possible to make $1,000,000 out of $30,000 but you have to be careful with leverage and make sure you know how much you should use per trade as well as you know how to stop loss. It's possible to reach $1,000,000 with your $30,000 I can guarantee that.
You can't guarantee it though, because by your math you've manged to x10 your investment, so £1000 x 10 is your £10,000. Going by that math, and if you could absolutely guarantee you could get that same return again (which you can't) you'd be looking at a maximum of 300k.
You might argue that you'd continue to invest what you've earned back, so you reinvest the 10,000 that you've earned, but that's is so incredibly risky especially when you don't have any funds for anything that might go tits up in your life. There's no get rich quick scheme for the vast majority of us, therefore you need to approach it in a somewhat safe way, while taking risks only when they're calculated risks, and not by the whim.
You lack of resolve and patient, and you don't have any solid plan, that's why you lose your money. If your parents ain't homeless, then the house could wait, and you also have to wait for the bull run, which happened in the year 2020 to mid year 2021, that means you could've wait for 2-3 years and that $16,000 worth of Bitcoin of yours would've been a huge amount of profits.
Having resolve, and patience is all well, and good. However, it's impossible to predict your future situation, and believe me things pop up out of nowhere. We're lucky in the UK that we have the NHS system which provides free healthcare from our taxes, but if you live anywhere else in the world barring a few exceptions, then medical bills can absolute destroy any time of investment you make, and if medical bills crop up at the wrong time, you'll either be forced to not have the treatment or take your investment out at a lesser rate than when you bought in. This isn't exclusive to medical bills, it can be any bill that pops up, its just medical bills aren't likely the most problematic for most people.
Also, not everyone's living situation is ideal when they're living with parents. Some people move out early to better their life, as well as better their relationship with their parents. The point I'm trying to make is everyone's situation is different, and while you could stay at home, and save a ton of money that certainly isn't the position everyone is in.