bitcoin continued to decline. the cow won . I lost $ 100 USD

Don't lose hope bro, even you lost $100 of your capital you can still have more opportunitt today because not only bad news cames but still have good news which is the value is good to buy because it is lpwer compared to the price last few days ago. So if you buy today and once they turn back to $4100 you get some profit and your $100 will be back.