is it good for my future that I have sold my altcoins and invested in bitcoins?
Good.
You have made a very reasonable decision because Bitcoin is much better as an investment asset than altcoins.
The trust wallet I put my invested bitcoins in, is the trust wallet safe for my bitcoins?
The number of your assets is quite large and continues to grow if you are serious about investing in Bitcoin.
I would say Trust Wallet is not a safe wallet to store assets with that amount.
Use the Electrum wallet for extra security.
BlueWallet is also secure and easy to use on mobile.
If you see and read this post, transfer all assets from Trust Wallet to Electrum wallet.
Since you have decided to sell all altcoins and invest in Bitcoin, I will no longer mention Unstoppable wallet.