It takes time because only a small amount of percentage of people in the world use cryptocurrencies, once this percentage grows so will the prices.
Not really, if all crypto users buy bitcoin, the bitcoin price will blow up and all altcoins will go up too. It can makes the value of your cryptocurrency increase too.
As you said, there are over 1500 cryptocurrencies on the market, there are many, so why you still hold the 0.0001 dollars coin? Just sell it and focus on the better coin like ethereum.