It is usually considered 'bad form' to highjack a thread'.
Having said that, no one can properly answer that question as it really comes down to your circumstances, interests, funds......
Your MCU is even older than the OPs and is not recommended for new designs. It has about 1.5K of RAM although 16K of FLASH.
Perhaps look to some IOT or basic data logging functions where you (say) read an I2C sensor and pass the data to something via SPI or the UART.
Just keep it very simple.
Susan