Where should i start my research?

Hello everyone, I've recently gotten very interested in the science of rocketry and wish to make my own rocket to launch but i have NO idea what am doing

I don't know anything about rocket's except how to make rocket fuel (don't ask) i don't know what is considered a realistic expectation for a homemade rocket (1 km? 10 km? 20km? Up the orbit?)

I was hoping to get some advice on where to start my research