I recently got locked out of my instagram account and was wondering

>>61821436
Meatspin.fr has a Instagram hacking tool for free.

Give it back, Taqueeshius

Just learn about

Networks:

"Computer Networking: A top-down approach" by Kurose and Ross
"TCP/IP Protocol Suite" by Behrouz A. Forouzan

Discrete structures:

https://www.cs.cornell.edu/~rafael/discmath.pdf

Database applications:

"Database System Concepts" by Sudarshan, Korth
"Fundamentals of Database System" By Elmasari & Navathe

Information assurance:

"Network Security Essentials Applications and Standards" by William Stallings

and so on and so on including:

LINUX administration
Database management systems and control systems
Disaster recovery
Cryptography
Computer security
Operating systems
Wireless network and security

You can find books in the other fields when you have finished the textbooks I have provided.

>>61821563
After this you can start checking out the technologies that instagram uses and try to look for flaws in the database or elsewhere in the backend system. And try to get around it. You should likely need to learn javascript and a few other languages. And likely need to know the underlying backend pretty well.