Don't trade other people's money! And do not take a loan! You already recognized these two options as "bad" choices which is good.
If I were you I would just take some of my salary and use it for trading, of course only if there's some money left at the end of the month. And if it's not enough, try to look if you can tighten your belt. Make a list of how much you pay for food, what kind of food, clothes, cigarettes, booze or any other things (monthly bills for your smartphone contract, TV channel packages etc). You may be surprised for how much useless or not really needed stuff you pay money. I recognized that I spend a lot of money for useless things and was able to reduce my costs significantly.