First of, life will get better for you. Money only solves money problems.
There are other ways to make more bitcoin, without adding cash every month. For instance, you could suck cock for Ethereum then transfer directly to BTC.
Instead of wanting to work at McDonalds in 20 months and having 1 BTC, you could work at Google and have 0.1 BTC. Then buy 1 BTC with your next month wages. Or maybe not, you may not be smart enough for this, but then there are still way better jobs than McDonalds. Im trying to say: Don't invest in BTC, invest in your future. If you start learning blockchain technology now, you'll be way better than expensive MBA's at consultancy companies. If you focus for 1.5 years on data science: applied ML, Python, Scala, AWS, you can get to work as a junior data scientist.
With 0.1 BTC you are still in the top 10% of wallet holdings!
> Please tell me what i can do; can i take a loan even if its just a partime job? Thought about getting 3.5k and 2x leverage it
No! Even if BTC has a 90% chance of rising to 10k, this is way too risky. Never invest with what you can not afford to lose (you can not afford to default on a loan and fuck up your credit forever, your next-decade credit should be worth way more than 100k+).
If you day trade and make 1% profit each day for a year, you'll have 0.15 BTC no matter the BTC price. If you pick a good 5x coin and 2x coin, you'll have 1 BTC, but remember: you have a year to make your picks, you dont get to 5x over a month (unless you picked OmiseGo like I did).
Remember, all that shit currently happening will pass. Everything is going to be allright. You are top 10% of the new world currency. Don't get desperate and make dumb moves, fucking up your stack or your credit.
Biz will not give you a loan at a better rate you can get with professional loan sharks. Or they may take pity on you, but then again, at 19, I was fucking hammering buckets on a factory conveyor belt.