maybe it's true that borrowing is one strategy but we have to look at our abilities now, Borrowing is not something good enough because as you say this will only kill slowly.
why not use what we have because the expectation of borrowing will only make you worse than before
so that you wont really be putting yourself into trouble on the day that you would need to pay those interest and the amount had been borrowed.IF you do see chances or opportunities
then go ahead but you should be aware on the risk involved since we know that crypto profits isnt guaranteed and would really vary or depend on when the market would make
out some significant movements which would go in line with your prediction and made out profits.