I see as of now ETH is trying to achieve growth steadily compared to LTC , even in the future its movement will be positive only due to the product and technology its backed with. Even the software firms are also supporting the cause and making ETH a grand success. I see LTC will also rise slowly but not sharply and momentum can be seen in both the currencies . I myself would keep an eye on ETH for buying at various positions.
Basically, what i have seen is when BTC rises the altcoins drop and vice versa. I donno know the rason why this happens. I can only say that the driving force for altcoins is BTC growth and depreciation as well. So put together, we can say that altcoins can never die as long as bTC survives and vice versa. Still I belive BTC has a long way future to go along with other altcoins as well as many are in their early ages. Keep investing and manage the risk.
I always said no for taking a loan for investing in cryptocurrencies. We should put the money here what we can afford to loose but not put the survival at stake. Keep u r kool calm and study the markets instead before u proceed for a loan or something kind of that. Even if u have money invest in ETH and wait for long term, thats all i can suggest for u .All the best.