Seems like you are new to invest in cryptocurrencies. If you have done before you spend money to investing on doge coin then you will know that all prices crypto is not stable. I mean its price will go up and down drastically because its price pure depend on supply and demand so it will make the price volatile.

Other than that, the news who comes about cryptocurrencies are much even per day we will see several news againts it and these things will affect the prices of cryptocurrencies. Just suggestion, if you use doge coin as trading place then you have to set the target price that will you sell but if not I mean you use crypto as investment place you just need choose short term and long term investment.