Your schematic claims that the program should send a "Hello Worldd".
But the code seem to try to send "Hellow World!"

Minor detail but if this had been a protocol to talk with a GPS or real-time-clock or anything else, then every single character would have mattered.

The schematics shows several different drawing styles, so you have basically done a copy/paste of a couple of subcircuits you have found, but not spent time understanding them.

Do download the datasheet for a MAX232 chip. Read the datasheet. Look for application examples. That will show you how to electrically interface such a chip with your processor. And it will result in standard electrical levels compatible with your PC. Feel free to cut and paste, but make sure that you understand the circuits you do copy. This world is full (!) of examples of how to interface just about any processor with a serial port - and just about all examples will juse a MAX232 or MAX3232 or a compatible chip from some other manufacturer. No need for people on this forum to create a schematic and post. Google already have thousands of suitable schematics for you to look at. That also goes for the reset circuit - how to tell the processor when the supply voltage is there and stable and it is safe to start processing your application.