In terms of selling your altcoins and investing in Bitcoin, it depends on various factors such as your investment goals, risk tolerance, and market conditions. Bitcoin is the largest and most well-known cryptocurrency, often considered a relatively safer choice compared to other altcoins. It has a longer track record and a larger user base, which can contribute to its overall stability and liquidity.

However, it's worth noting that the cryptocurrency market as a whole can be highly volatile and subject to rapid price fluctuations. While Bitcoin may offer potential long-term value, it is still susceptible to short-term price swings. Diversification is often recommended to mitigate risk, so holding a mix of different cryptocurrencies or assets can be a strategy some investors employ
Regarding the Trust Wallet, it is generally considered a reputable mobile wallet for storing various cryptocurrencies, including Bitcoin. It is designed to provide security features such as private key encryption and user-controlled funds. However, it's always important to exercise caution when it comes to securing your digital assets. Make sure to enable all available security features, such as two-factor authentication, and keep your wallet software up to date. Additionally, consider backing up your wallet's recovery phrase or private keys in a secure offline location.