This is called a known plaintext attack against a cipher and is a major design consideration. What you want to do is considered to not be possible barring any major revelation into a weakness in AES. There is another Q/A here that might help you understand further:
Ciphers only operate on a fixed length of bits, so chaining modes are used to encrypt arbitrary lengths of data. ECB is the most simple one, it just encrypts one block at a time. The main weakness is that identical blocks produce the same encrypted output which is a major leak of information. It also creates opportunities for replay attacks where an attacker can just re-send encrypted blocks that they think they know the contents of. Unfortunately this does not get you anywhere closer to key recovery with a known plain text.
One viable attack for you might be if you used a password to generate the key, and you remember for example that it is exactly 12 characters long and has three digits. This majorly limits the password space and might allow a brute force analysis to work.