Yes, you should continue to invest in altcoin. Investment is a good thing to have a better life than working. In this past few months many altcoin are pump down it's price because of it's competition in the market. Many altcoin are not successful of their projects.
And they say, it was a scam but they don't know that it was a market competition. Because of many new ICO projects out now everyone's need to compete so that their project will succeed. Invest in altcoin that have a great opportunity to rise and also have a great potential to success with their project.