So you believe what your friend said?
You said that there were no problems while using Bitcoin, which means Bitcoin is safe to use. Various large companies such as MicroStrategy, Tesla and the country of El Salvador have stored Bitcoin in large amounts for the long term, so far their assets have been safe, even El Salvador has made huge profits from Bitcoin investments. MXR is not easily traceable, but there is no other coin better than Bitcoin, although bitcoin transactions can be traced because they are visible on the blockchain, but it will not make you hunted by the authorities after making a transaction.