I think i worn out all of my Arduino Uno memory
To check if you really cannot upload anymore (assuming it's not a software error), try the following sketch

https://www.arduino.cc/en/tutorial/blink

This will blink the BUILTIN led.

There is very low chance to wore out your memory, you can write lots of times to it (like 10,000 times guaranteed, in practice mostly more). 

But there can be another hardware problem, but first check if this simple sketch works.

Also (based on jsotola's comment), remove shields/wires.

Especially wires/shields using RX/TX since these pins are (somehow) used for loading a sketch.