This is a kind of gambling I don't appreciate, is $1k not too big for you to risk?, actually before you do anything try to read how the bet is all about because you might be thinking that if you predict $150k and the Price get lower you will win but at the end you will be told that it did not get to your number of prediction and is impossible to be accurate on that because even professionals or people that call themselves Bitcoin guru cannot get it right no matter how they study it. Actually if is a prediction that doesn't involve you to stake money then is better but betting with money is a no answer.
As the market may be it's actually that hard and difficult to be predicted and even if we are too sure about the market it wouldn't results as may have think where someone would go stake higher amounts for the market to hit a specific price by a duration of month or date, which I think the result might likely be that too difficult to come out as planned but using such amount is far way higher instead it would be better using an amount riskable to predict a certain outcome or occurrence of the market.