This year is the year to purify all altcoins because lots of coins are becoming shitcoin in this sector so you don't have to spend time learning because it will only make you more frustrated. At the moment, Bitcoin is the cheapest option and if you have a good investment opportunity, invest now as 2020 is about to start. Personally, I have great confidence in this market next year because this is the year all investors are waiting to join this risky market and will certainly attract a lot of new investors.
Personally I will like that the majority of altcoins in the market disappeared, we need to be very direct most of those coins are either scams or coins with no hope of becoming good in the future, at most there are 100 coins that are worth anything and the rest of the coins are bad coins that should disappear, but that is never going to happen, even if thousands of coins disappeared during this year I can assure you that thousands of coins will appear to replace them in a never ending cycle.