It depends on your belief, if you believe the Shiba token will be a great token in the future, then you can keep it. Apart from that, you should also monitor the progress of the Shiba team in developing their platform. So you don't miss any information.
Don't only depend on belief, it is not a proper way to treat meme tokens. Except, you are investing in BTC, ETH, BNB, or other top coins. Because SHIB is a meme token, you need to know when the best time to buy-hold and when you must sell-exit from SHIB investment. Most meme tokens only rely on the news or hypes to increase their values. If there is nothing interesting or no good news related to the token anymore, be careful that the price/value will drop significantly and continously.