Yes it is wise to continue investing but more better to be conscious of what you are investing in. Investing in good coins like BTC or ETH will surly pay off in the long term. Also, there are other Altcoins worth investing, we all need to be careful so that we can enjoy our investments.
Not only Ethereum or Bitcoin is worth special attention, but also the BNB token. I think it is much more promising than Bitcoin, because it is very much in demand and as long as Binance is number one, it will always go up and bring huge profits!